Gypsum has quietly become one of the defining materials of modern Indian construction. Drywall partitions replace brick in offices and hotels, false ceilings conceal services in almost every commercial fit-out, and glass fibre reinforced gypsum panels are increasingly used in structural and semi-structural applications in fast-build housing. The material is light, quick to install, and — critically — offers inherent fire resistance, which is precisely why it is specified in buildings where people gather. That fire performance is also why quality control matters. The government has brought the category under compulsory BIS certification through the Gypsum based Building Materials (Quality Control) Order, 2024, notified vide S.O. 1153(E) dated 6 March 2024, with a corrigendum issued vide S.O. 2007(E) dated 14 May 2024 and an amendment order vide S.O. 5058(E) dated 25 November 2024 — making the ISI mark mandatory across four Indian Standards under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018, as listed on the BIS list of products under compulsory certification. This guide explains all four standards, what they test, the licensing process, documents, timelines, costs, common mistakes, and the wider compliance picture. Why Gypsum Building Materials Fall Under Mandatory BIS Certification Quality Control Orders are the government’s instrument for making an Indian Standard mandatory. Once a QCO is notified under the BIS Act, 2016, no person can manufacture, import, distribute, sell, hire, lease, store, or exhibit for sale any covered product without the ISI mark granted under a valid BIS licence. The primary rationale is fire safety, and it rests on a specific property of the material. Gypsum is calcium sulphate dihydrate — it contains chemically bound water. When exposed to fire, that water is driven off as steam in a process called calcination, and while this is happening the board surface stays at around the boiling point of water, holding back heat from whatever lies behind it. A properly formulated gypsum board therefore buys real time during a fire: time for occupants to evacuate and for the structure behind the partition to remain protected. A poorly made board does not do this reliably. If the core density is too low, the additives are wrong, or the paper facing is not properly bonded, the board can fail early — cracking, falling away from its framing, and opening a path for fire and smoke into a protected space. This is a life-safety failure in a product specified precisely for its fire performance, and it is entirely invisible to the architect, contractor, or occupant. Nobody can assess a plasterboard’s fire behaviour by looking at it. Structural and serviceability performance matters too. Ceiling tiles and boards must carry their own weight across the spans they are installed over without sagging — a common and visible failure in Indian humidity, where boards with inadequate moisture resistance deform within months. Glass fibre reinforced gypsum panels under IS 17400 are used in applications carrying real structural expectation, where flexural strength is a design input rather than a marketing claim. Because gypsum products are specified by professionals but bought on price through project procurement, and because India’s construction boom has drawn in many new manufacturers and substantial imports, the category was ripe for regulation. For manufacturers, the QCO is also a commercial gate: builders, contractors, architects, and government project procurement verify BIS licences, and customs authorities check compliance at import. Which Products Are Covered: All Four Notified Standards Indian Standard Product Category Typical Products Covered IS 2095 (Part 1):2011 Gypsum Plaster Boards — Plain Standard plain gypsum plasterboard for partitions, wall linings and ceilings IS 2095 (Part 2):2022 Gypsum Plaster Boards — Coated / Laminated Coated and laminated gypsum plaster boards, including decorative and faced products IS 2095 (Part 3):2022 Gypsum Plaster Boards — Reinforced Boards and Ceiling Tiles Reinforced gypsum plaster boards and gypsum ceiling tiles IS 17400:2021 Glass Fibre Reinforced Gypsum Panels GFRG panels used in walling and semi-structural applications The IS 2095 family is structured by product type across three parts, with Parts 2 and 3 published in 2022 as newer revisions covering coated/laminated boards and reinforced boards and ceiling tiles respectively. A manufacturer producing plain board, laminated board, and ceiling tiles therefore needs conformity under all three parts — a point that catches businesses assuming a single IS 2095 licence covers the family. IS 17400 sits separately and addresses glass fibre reinforced gypsum panels, a distinct product with its own performance requirements. Manufacturers should confirm the exact covered products, standards, and current editions against the latest notification before testing — noting both the May 2024 corrigendum and the November 2024 amendment order, which together refined the original March 2024 notification — because the licence is granted per standard, per manufacturing location. Who Must Comply The QCO binds every link in the supply chain. Indian manufacturers need a BIS licence under Scheme-I for each manufacturing premises and each applicable standard. Importers cannot clear covered gypsum products through customs unless the foreign manufacturing site itself holds a BIS licence — obtained through the Foreign Manufacturers Certification Scheme (FMCS), under which BIS audits the overseas factory and grants the ISI licence to the foreign entity, which must also appoint an Authorised Indian Representative (AIR) resident in India. The Indian importer cannot hold the licence on the factory’s behalf. Traders, building material distributors, and marketplaces are equally barred from storing or selling non-compliant stock. Contractors, interior fit-out firms, and project buyers carry practical exposure. Installing unlicensed boards in a project creates a compliance defect across the building, and in a fire-safety-critical application that exposure is significant. Procurement should verify the CM/L licence of the supplying factory rather than accepting brand or distributor assurances. Manufacturers should confirm the operative implementation dates for their enterprise category — general, small, and micro enterprises are given staggered timelines — against the current notification, reading obligations from the corrigendum and amendment rather than the original order alone. DPIIT has also issued cross-cutting exemption orders for goods and articles against import and against purchase (S.O. 775(E) and S.O. 776(E),

Every quantitative result produced in an Indian laboratory ultimately rests on a piece of glass. A drug potency assay, a water quality test, a food adulteration check, a school chemistry experiment, and a clinical diagnostic all begin with a volume measured in a cylinder, a solution made up in a volumetric flask, or an aliquot transferred by pipette. If that glassware is inaccurate, everything downstream is wrong — and wrong in a way that no amount of instrument sophistication or analytical rigour can detect or correct, because the error enters before the measurement begins. The government has brought the category under compulsory BIS certification through the Laboratory Glassware (Quality Control) Order, 2023, notified vide S.O. 44(E) dated 1 January 2024, subsequently amended by the Laboratory Glassware (Quality Control) Amendment Order, 2024 vide S.O. 5358(E) dated 11 December 2024 and further by S.O. 777(E) dated 13 February 2026 — making the ISI mark mandatory across five Indian Standards under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018, as listed on the BIS list of products under compulsory certification. This guide explains all five standards, what they test, the licensing process, documents, timelines, costs, common mistakes, and the wider compliance picture. Why Laboratory Glassware Falls Under Mandatory BIS Certification Quality Control Orders are the government’s instrument for making an Indian Standard mandatory. Once a QCO is notified under the BIS Act, 2016, no person can manufacture, import, distribute, sell, hire, lease, store, or exhibit for sale any covered product without the ISI mark granted under a valid BIS licence. The rationale here is measurement integrity at the foundation of the analytical chain. Volumetric glassware carries a declared capacity and a tolerance class, and both are claims the buyer cannot verify. A volumetric flask marked 100 ml that actually holds 101.5 ml introduces a systematic error into every standard solution prepared in it. A pipette that delivers slightly less than its nominal volume biases every assay it touches. Because these errors are systematic rather than random, they do not average out across replicates — they shift results consistently in one direction, which is exactly the kind of error that survives statistical scrutiny and quality control charts. The consequences reach into regulated sectors. Pharmaceutical release testing, food safety analysis, environmental monitoring, and clinical laboratories all operate under quality systems that assume their volumetric ware conforms to declared tolerances. Substandard glassware quietly undermines accreditation, invalidates method validation, and can produce results that pass a product that should have failed. There is a physical safety dimension too. Laboratory glassware is heated, cooled, subjected to vacuum, and filled with corrosive and flammable reagents. Glass of the wrong composition or with poor annealing carries internal stress and can fracture without warning during heating, exposing a worker to hot or hazardous contents. Borosilicate composition, thermal shock resistance, and freedom from stress are therefore safety requirements, not merely quality ones. For manufacturers, the QCO is also a commercial gate: pharmaceutical and institutional procurement, laboratory supply distributors, and government tenders verify BIS licences, and customs authorities check compliance at import — a significant point in a category with substantial import volumes. Which Products Are Covered: All Five Notified Standards Indian Standard Product Category Typical Products Covered IS 878:2008 Graduated Measuring Cylinders Graduated cylinders across capacity ranges for general volumetric measurement IS 915:2012 One-Mark Volumetric Flasks Single-graduation volumetric flasks used for preparing standard solutions IS 1381 (Part 1):2003 Narrow-Necked Boiling Flasks Narrow-neck boiling flasks for heating and reaction work IS 1117:2018 Single Volume Pipettes One-mark (bulb) pipettes for accurate transfer of fixed volumes IS 2619:2018 Glass Beakers Laboratory beakers across capacity ranges The schedule covers the core of everyday laboratory glassware: three volumetric items where accuracy is the defining property (cylinders, volumetric flasks, pipettes) and two general-purpose items where thermal and mechanical performance dominate (boiling flasks, beakers). Manufacturers should confirm the exact covered products, standards, and current editions against the latest notification before testing — noting the December 2024 amendment and the February 2026 amendment — because the licence is granted per standard, per manufacturing location. A glassware manufacturer with a full catalogue will typically need licences under several of the five. Who Must Comply The QCO binds every link in the supply chain. Indian manufacturers need a BIS licence under Scheme-I for each manufacturing premises and each applicable standard. Importers cannot clear covered glassware through customs unless the foreign manufacturing site itself holds a BIS licence — obtained through the Foreign Manufacturers Certification Scheme (FMCS), under which BIS audits the overseas factory and grants the ISI licence to the foreign entity, which must also appoint an Authorised Indian Representative (AIR) resident in India. The Indian importer cannot hold the licence on the factory’s behalf. Laboratory supply distributors, traders, and marketplaces are equally barred from storing or selling non-compliant stock. Laboratories and institutional buyers should note their practical exposure. An accredited laboratory whose volumetric ware is not certified faces questions about measurement traceability, and procurement processes should verify the CM/L licence of the supplying factory rather than relying on distributor assurances. Manufacturers should confirm the operative implementation dates for their enterprise category — general, small, and micro enterprises are given staggered timelines — against the current notification, reading obligations from the latest amendment. DPIIT has also issued cross-cutting exemption orders for goods and articles against import and against purchase (S.O. 775(E) and S.O. 776(E), both dated 13 February 2026), and goods manufactured domestically for export are typically outside scope. What the Standards Actually Test Capacity accuracy and tolerance class — the central requirement for volumetric ware. The actual delivered or contained volume is determined gravimetrically: the glassware is filled to the graduation with water at a controlled temperature and weighed, and the volume calculated. The measured value must fall within the tolerance limits for the declared capacity and class. For pipettes, delivery time and drainage behaviour are also specified, because a pipette drained too quickly leaves a film that changes the delivered volume — which is why the standard prescribes both

Electrical accessories are the small components that make an electrical installation work — and, when they fail, the components that burn a building down. The plastic box behind a switch plate, the lamp holder in a ceiling fitting, the socket outlet on a wall, the trunking carrying cables along a corridor, and the insulating tape a wiring contractor wraps around a joint are all inexpensive items bought in bulk, specified by contractors rather than end users, and almost never examined by the people who ultimately depend on them. Add to that the personal protective equipment electricians rely on — insulating gloves and mats that stand between a worker and a live conductor — and the case for regulation becomes obvious. The government has brought the category under compulsory BIS certification through the Electrical Accessories (Quality Control) Order, 2023, notified vide S.O. 43(E) dated 1 January 2024 and subsequently amended by the Electrical Accessories (Quality Control) Amendment, 2026 vide S.O. 187(E) dated 13 January 2026 — making the ISI mark mandatory across eight Indian Standards under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018, as listed on the BIS list of products under compulsory certification. This guide explains all eight standards, what they test, the licensing process, documents, timelines, costs, common mistakes, and how accessory certification fits into the wider compliance picture. Why Electrical Accessories Fall Under Mandatory BIS Certification Quality Control Orders are the government’s instrument for making an Indian Standard mandatory. Once a QCO is notified under the BIS Act, 2016, no person can manufacture, import, distribute, sell, hire, lease, store, or exhibit for sale any covered product without the ISI mark granted under a valid BIS licence. The safety logic here is about hidden components in permanent installations. An electrical accessory is typically installed once, concealed behind a plate or above a ceiling, and then left for decades. If the enclosure material does not resist heat and flame, a loose connection inside it becomes a fire that spreads to the building fabric rather than self-extinguishing. If a lamp holder’s contacts are poor, they heat and eventually arc. If a socket outlet’s shutters or contact design is inadequate, it presents a shock hazard to anyone — including children — using it. If cable trunking is brittle or non-flame-retardant, it becomes a fire path running through a building. Two of the covered standards protect workers directly rather than installations. Insulating gloves under IS 13774 and insulating mats under IS 15652 are personal protective equipment used in live working, where the material’s dielectric integrity is the only barrier between an electrician and a fatal shock. A defect in these products is not a quality issue; it is a life-safety failure, and it is undetectable by the user before the moment it matters. Because accessories are bought on price through contractor and distributor channels, quality compromises are commercially rewarded and functionally invisible. Certified conformity verifies materials, construction, dielectric performance, and thermal behaviour at the factory. For manufacturers, the QCO is also a commercial gate: electrical contractors, project procurement, government and utility tenders, and organised distribution verify BIS licences, and customs authorities check compliance at import. Which Products Are Covered: All Eight Notified Standards Indian Standard Product Category Typical Products Covered IS 14772:2020 Boxes and Enclosures for Electrical Accessories Concealed and surface boxes and enclosures for household and similar fixed electrical installations IS 14927 (Part 2):2001 Cable Trunking and Ducting Systems Trunking and ducting intended for mounting on walls or ceilings IS 1258:2005 Bayonet Lamp Holders B22 and similar bayonet-type lamp holders used across Indian lighting IS 15787:2008 Switch-Socket-Outlets (non-interlock type) Combined switch and socket outlet units of the non-interlocked type IS 13774:2021 Live Working Gloves of Insulating Material Electrical insulating gloves used as PPE for live working IS 15652:2006 Insulating Mats for Electrical Purposes Insulating floor mats used in front of switchgear and electrical panels IS 7809 (Part 3/Sec 1):1986 Pressure Sensitive Adhesive Insulating Tapes Plasticized PVC insulating tapes with non-thermosetting adhesive for electrical purposes IS 16012:2012 Poly-Laminated Aluminium Cable Wrap Poly-laminated aluminium wrap used in cable construction and screening What stands out is the breadth. This single order reaches installation hardware (boxes, trunking), wiring devices (lamp holders, switch-socket-outlets), consumables (PVC insulating tape, cable wrap), and personal protective equipment (gloves, mats) — four quite different manufacturing industries. A business making only one of these needs one licence; a diversified electrical accessories manufacturer may need several. Manufacturers should confirm the exact covered products, standards, and current editions against the latest notification before testing — particularly given the January 2026 amendment — because the licence is granted per standard, per manufacturing location. Who Must Comply The QCO binds every link in the supply chain. Indian manufacturers need a BIS licence under Scheme-I for each manufacturing premises and each applicable standard. Importers cannot clear covered accessories through customs unless the foreign manufacturing site itself holds a BIS licence — obtained through the Foreign Manufacturers Certification Scheme (FMCS), under which BIS audits the overseas factory and grants the ISI licence to the foreign entity, which must also appoint an Authorised Indian Representative (AIR) resident in India. The Indian importer cannot hold the licence on the factory’s behalf. Traders, distributors, electrical contractors, and marketplaces are equally barred from storing or selling non-compliant stock. Contractors and project buyers should note their practical exposure: specifying and installing unlicensed accessories in a project creates a compliance defect across the installation, and procurement processes should verify the CM/L licence of supplying factories rather than accepting brand assurances. Manufacturers should confirm the operative implementation dates for their enterprise category — general, small, and micro enterprises are given staggered timelines — against the current notification, reading obligations from the 2026 amendment where applicable. DPIIT has also issued cross-cutting exemption orders for goods and articles against import and against purchase (S.O. 775(E) and S.O. 776(E), both dated 13 February 2026), and goods manufactured domestically for export are typically outside scope. What the Standards Actually Test The test regimes differ sharply across this diverse

The bicycle and the cycle rickshaw remain among India’s most important vehicles. Millions of people commute to work, carry goods, deliver food, and earn a living on two or three wheels, largely without the protective equipment or regulatory scrutiny that surrounds motor vehicles. For a rickshaw puller carrying passengers through traffic, or a worker cycling to a factory before dawn, the tyre is the only thing connecting the vehicle to the road — and a blowout, a bead failure, or a tube that bursts at speed produces a fall into traffic with no crumple zone and no seatbelt. The government has brought the category under compulsory BIS certification through the Cycle and Rickshaw Tyres and Tubes (Quality Control) Order, 2023, notified vide S.O. 5323(E) dated 11 December 2023, making the ISI mark mandatory across two Indian Standards under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018, as listed on the BIS list of products under compulsory certification. This guide explains both standards, what they test, the licensing process, documents, timelines, costs, common mistakes, and how tyre certification fits into the wider India compliance picture. Why Cycle and Rickshaw Tyres Fall Under Mandatory BIS Certification Quality Control Orders are the government’s instrument for making an Indian Standard mandatory. Once a QCO is notified under the BIS Act, 2016, no person can manufacture, import, distribute, sell, hire, lease, store, or exhibit for sale any covered product without the ISI mark granted under a valid BIS licence. The road-safety case is straightforward but often underappreciated because the vehicles are humble. A cycle tyre carries the rider’s weight, the vehicle’s weight, and — on a rickshaw or a loaded cargo cycle — a substantial payload, all on a contact patch smaller than a palm, at pressures that stress the carcass and bead continuously. Failure modes are abrupt: a bead that unseats releases the tyre from the rim, a carcass that separates causes a sudden deflation, and a tube that fails at a weak seam blows out without warning. On a bicycle there is no redundancy, and the rider goes down. Durability compounds the issue. Cycle tyres in India work in punishing conditions — poor road surfaces, sharp debris, prolonged sun exposure that degrades rubber, and heavy overloading on commercial rickshaws that routinely carry more than their design intent. Cheap compounds crack, sidewalls weaken, and tread wears through quickly, but none of this is visible in a new tyre on a shop shelf. The buyer sees the same black rubber whether the compound is properly formulated or heavily loaded with filler. The economics make regulation necessary. These are low-value, high-volume products bought overwhelmingly on price by consumers who cannot assess quality, in a market with an enormous replacement segment and substantial imports. Certified conformity to the Indian Standard verifies construction, strength, and material quality at the factory. For manufacturers, the QCO is also a commercial gate: bicycle OEMs, organised retail and the replacement trade, and institutional procurement verify BIS licences, and customs authorities check compliance at import. Which Products Are Covered: Both Notified Standards Indian Standard Product Category Typical Products Covered IS 2414:2005 Cycle and Rickshaw Pneumatic Tyres Pneumatic tyres for bicycles and cycle rickshaws across standard rim sizes and sections IS 2415:2015 Cycle — Rubber Tubes (Moulded or Jointed) Inner tubes for bicycles and cycle rickshaws, of moulded or jointed construction The pairing is deliberate: a pneumatic assembly is only as safe as both of its parts, and a well-made tyre fitted with a poor tube still fails. IS 2415 covers both moulded and jointed tubes — the distinction matters technically, because a jointed tube has a splice that is inherently a weak point requiring proper vulcanising, and this is precisely where cheap tubes fail. Manufacturers should confirm the exact covered products, standards, and current editions against the latest notification before testing, because the licence is granted per standard, per manufacturing location. A business making both tyres and tubes needs a licence under each. Who Must Comply The QCO binds every link in the supply chain. Indian manufacturers need a BIS licence under Scheme-I for each manufacturing premises and each applicable standard. Importers cannot clear covered tyres or tubes through customs unless the foreign manufacturing site itself holds a BIS licence — obtained through the Foreign Manufacturers Certification Scheme (FMCS), under which BIS audits the overseas factory and grants the ISI licence to the foreign entity, which must also appoint an Authorised Indian Representative (AIR) resident in India. The Indian importer cannot hold the licence on the factory’s behalf. Traders, distributors, cycle dealers, and marketplaces are equally barred from storing or selling non-compliant stock. Bicycle manufacturers assembling complete cycles should note that tyres and tubes fitted to their vehicles are covered products in their own right, and sourcing should verify the CM/L licence of the supplying factory. The replacement market — where the bulk of cycle tyres are sold, through small dealers and repair shops — is squarely within scope, and distributors need to clear unlicensed stock from their channels. Manufacturers should confirm the operative implementation dates for their enterprise category — general, small, and micro enterprises are given staggered timelines — against the current notification. DPIIT has also issued cross-cutting exemption orders for goods and articles against import and against purchase (S.O. 775(E) and S.O. 776(E), both dated 13 February 2026) applying across several QCO categories, and goods manufactured domestically for export are typically outside scope — an important carve-out for India’s substantial cycle tyre export industry. What the Standards Actually Test Dimensional conformity — the tyre must match its designated size so that it seats correctly on the intended rim. Section width, overall diameter, and bead seat dimensions are measured. This is a safety parameter, not a convenience one: a tyre whose bead geometry is out of tolerance can unseat under pressure or during hard cornering. Strength and construction integrity — the tyre is subjected to strength testing that verifies the carcass and its plies withstand load without rupture, and bead

The flashlight is one of the most widely owned products in India. Torches sit in kitchen drawers, glove boxes, shop counters, and toolkits across the country, and in regions where power cuts remain routine they are not a convenience but essential safety equipment. India’s torch market spans large branded manufacturers, a vast unorganised sector, and a heavy inflow of low-cost imports — a combination that has historically produced enormous quality variation. The government has now brought the category under compulsory BIS certification through the Flashlight (Quality Control) Order, 2025, notified vide S.O. 501(E) dated 28 January 2025, which makes the ISI mark mandatory under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018 — the same ISI Mark Scheme listed on the BIS list of products under compulsory certification. The order is refreshingly simple in scope: a single Indian Standard, IS 2083:2024, governs the entire category. But simplicity of scope does not mean simplicity of compliance. Every manufacturer and importer of covered flashlights needs a BIS licence granted after factory inspection and laboratory testing, and unlicensed torches cannot be manufactured, imported, stored, or sold in India. This guide explains the standard and what it tests, who must comply, the step-by-step ISI licensing process, documents, timelines, costs, common mistakes, and how flashlight certification connects to the wider India compliance picture — particularly the battery and e-waste obligations that modern LED and rechargeable torches carry. Why Flashlights Fall Under Mandatory BIS Certification Quality Control Orders are the government’s instrument for making an Indian Standard mandatory. Once a QCO is notified under the BIS Act, 2016, no person can manufacture, import, distribute, sell, hire, lease, store, or exhibit for sale any covered product without the ISI mark granted under a valid BIS licence. The flashlight QCO follows the pattern the government has applied across consumer goods — footwear, toys, furniture, hand tools — with a clear objective: lift the quality floor of a mass-market product, curb substandard imports, and give organised domestic manufacturers a level field. The consumer-protection rationale is concrete. A torch is bought on the promise that it will work when it is needed — during a power cut, a breakdown on a dark road, a night-time emergency. Substandard torches fail exactly then: weak or inconsistent light output, poor battery contact that cuts out when jolted, switches that break after a few weeks, casings that crack on the first drop, and water ingress that corrodes contacts after a single monsoon. None of this is visible at the point of purchase, where a poorly made torch looks identical to a well-engineered one under shop lighting. There is a safety dimension too. Modern flashlights are increasingly rechargeable, containing lithium-ion cells and charging circuitry. Poor cell quality, absent protection circuits, and badly designed charging arrangements introduce genuine fire and thermal runaway risks into a product people leave charging overnight. Certified conformity to the Indian Standard verifies construction, electrical safety, mechanical robustness, and performance at the factory rather than leaving it to chance. For manufacturers, the QCO is also a commercial gate: organised retail, institutional and government procurement, and e-commerce marketplaces verify BIS licences for covered products, and customs authorities check compliance at import. The Applicable Standard: IS 2083:2024 The Flashlight QCO maps the whole category to one standard: Indian Standard Scope Products Covered IS 2083:2024 Flashlight — Specification The entire flashlight/torch category, including LED and rechargeable models covered by the QCO IS 2083 is a long-established Indian Standard for flashlights, revised in 2024 to reflect the technology shift that has transformed the category — the near-total replacement of incandescent bulbs by LEDs, the growth of rechargeable models, and modern expectations of light output and runtime. Because the QCO references the 2024 edition, manufacturers working from older editions of the standard must confirm they are testing to the current revision; certification rests on demonstrated conformity to the edition the QCO names. A single-standard category has one practical advantage: a manufacturer producing a wide range of torch models generally needs one licence per manufacturing location rather than several, with the model range covered as varieties under that licence. That makes the licence structure straightforward — but it also means every covered model must sit within the tested variety scope, so range planning at application stage matters. Who Must Comply The QCO binds every link in the supply chain. Indian manufacturers of covered flashlights need a BIS licence under Scheme-I for each manufacturing premises. Importers cannot clear covered torches through customs unless the foreign manufacturing site itself holds a BIS licence — obtained through the Foreign Manufacturers Certification Scheme (FMCS), under which BIS audits the overseas factory and grants the ISI licence to the foreign entity, which must also appoint an Authorised Indian Representative (AIR) resident in India. This is the point most often misunderstood: the Indian importer cannot hold the licence on the factory’s behalf. Traders, distributors, and marketplaces are equally barred from storing or selling non-compliant stock. Assemblers deserve particular attention. A business that imports torch components and assembles them in India is a manufacturer for QCO purposes and needs its own licence for the premises where assembly happens. Brand owners who have torches made by third-party factories must ensure that each manufacturing site supplying them holds a valid licence, since the licence attaches to the factory, not the brand. As with comparable QCOs, goods manufactured domestically for export sit outside the order, allowing export-oriented torch manufacturers to continue producing to overseas specifications. Manufacturers should confirm the operative implementation dates for their enterprise category — general, small, and micro enterprises are typically given staggered timelines — against the current notification, and should note that DPIIT has issued cross-cutting exemption orders for goods and articles against import and against purchase (S.O. 775(E) and S.O. 776(E), both dated 13 February 2026) that apply across several QCO categories. What IS 2083 Actually Tests Understanding what the laboratory examines clarifies why certification takes preparation. The standard evaluates flashlights across four broad areas. Photometric performance — light output and beam

Solar water heating is one of India’s oldest and most widespread renewable energy applications — rooftop systems on homes, hostels, hotels, hospitals, and industrial facilities convert sunlight directly into hot water, cutting electricity and fuel bills every day they operate. As the market has grown, so has the inflow of low-quality collectors and tanks that corrode, leak, or underperform within a few seasons. The government’s response is the Solar Thermal Systems, Devices and Components (Quality Control) Order, 2024 — issued by the Ministry of New and Renewable Energy (MNRE) on 8 October 2024 and published in the Gazette on 14 October 2024 — which brings solar thermal products under compulsory BIS certification with the ISI mark, under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018, alongside the other products on the BIS list of products under compulsory certification. The QCO came into force on 13 April 2025 — 180 days from publication — which means the obligation is already live: covered solar thermal products cannot be manufactured, imported, stored, or sold in India without a valid BIS licence and the Standard Mark. For domestic manufacturers, importers of collectors and tanks, and brands assembling systems from bought-out components, certification is now the gateway to the Indian market. This guide explains the covered products and standards, the step-by-step ISI licensing process, documents, timelines, common mistakes, and how solar thermal certification fits into the wider India compliance picture. Why Solar Thermal Products Fall Under Mandatory BIS Certification Quality Control Orders are the government’s instrument for making an Indian Standard mandatory. Once a QCO is notified under the BIS Act, 2016, no person can manufacture, import, distribute, sell, hire, lease, store, or exhibit for sale any covered product without the ISI mark granted under a valid BIS licence. The solar thermal QCO serves a dual policy purpose: consumer protection and renewable energy credibility. A solar water heating system is a decade-plus investment sold substantially on trust — the buyer cannot judge absorber coating quality, glass durability, insulation performance, or tank corrosion resistance at purchase. Substandard products damage more than the individual buyer. Early failures — leaking collectors, burst tanks, collapsed vacuum tubes, corroded heat exchangers — erode public confidence in solar thermal technology itself, undermining national renewable energy goals. By mandating conformity to Indian Standards, the QCO raises the quality floor, protects the reputation of the technology, and gives serious manufacturers a level field against low-cost, low-quality competition. For manufacturers, certification is also a commercial gate: government procurement, institutional buyers, and organised retail verify BIS licences for covered products, and customs authorities check compliance at import. Which Products Are Covered: IS 12933, IS 16544 and IS 16542 The QCO covers three categories of solar thermal products, each mapped to its Indian Standard: Indian Standard Product Category Typical Products Covered IS 12933 (Part 1):2003 Solar Flat Plate Collector — Requirements Flat plate collectors for solar water heating systems — the glazed absorber panels installed on rooftops IS 12933 (Part 2):2003 Solar Flat Plate Collector — Components Components of flat plate collectors — absorbers, glazing, casings, insulation IS 16544:2016 All Glass Evacuated Tubes Solar Water Heating System Complete evacuated tube collector (ETC) based solar water heating systems IS 16542:2016 Storage Water Tank for All Glass Evacuated Tube Solar Collector Direct insertion type storage water tanks used with ETC systems One clarification matters for importers: MNRE has clarified that the bare glass evacuated solar collector tubes themselves are excluded from the QCO’s scope — the order applies to the systems and tanks, not the individual glass tubes as components. Manufacturers and importers should confirm the exact applicability and current edition of each standard against the latest notification before testing, because the licence is granted per standard, per manufacturing location, and scope questions — system versus component, complete unit versus sub-assembly — determine what must be certified. Who Must Comply — and From When The QCO binds every link in the supply chain. Indian manufacturers of covered collectors, systems, and tanks need a BIS licence under Scheme-I for each manufacturing premises and each applicable standard. Importers cannot clear covered products through customs unless the foreign manufacturing site itself holds a BIS licence — obtained through the Foreign Manufacturers Certification Scheme (FMCS), under which BIS audits the overseas factory and grants the ISI licence to the foreign entity, which must also appoint an Authorised Indian Representative (AIR). Assemblers and brand owners sourcing collectors or tanks from third parties must ensure every notified product in their bill of materials originates from a licensed site. Traders and distributors are equally barred from storing or selling non-compliant stock. The order has been in force since 13 April 2025. More than a year into enforcement, BIS market surveillance and customs scrutiny are established, and unlicensed products face seizure and penal action under the BIS Act, 2016 — imprisonment of up to two years and/or fines starting at ₹2 lakh for a first offence. Manufacturers still selling uncertified stock, and importers with un-cleared consignments, should regularise immediately. What the Solar Thermal Standards Actually Test Understanding what the laboratory examines clarifies why certification takes preparation. The standards evaluate solar thermal products against the conditions of a decade on an Indian rooftop. Thermal performance — collectors are tested for instantaneous efficiency, time constant, and incident angle behaviour; systems for daily hot water output. This verifies the product actually delivers the energy performance it is sold on. Durability and weather resistance — exposure tests, thermal shock (cold water spray on a hot collector, simulating a sudden shower on a stagnating panel), internal and external thermal cycling, and rain penetration tests simulate years of rooftop weathering. Materials must withstand stagnation temperatures — the extreme condition when a collector sits full in the sun with no draw-off. Pressure and leakage integrity — absorbers, piping connections, and storage tanks are pressure tested; tanks for ETC systems are checked for structural adequacy at operating conditions, and insulation performance is verified so stored water stays hot overnight. Materials and construction —