IS 17042 BIS Certification for Diesel Engines – NOx Reduction Agent AUS 32
Diesel Engines – NOx Reduction Agent AUS 32 made, imported or sold in India must be certified against IS 17042 under an ISI mark licence (Scheme-I). What the standard covers, how testing works and how to get the licence.
About IS 17042
| Standard | IS 17042 (Part-1): 2018 |
|---|---|
| Title | Diesel Engines – NOx Reduction Agent AUS 32 |
| Product covered | Diesel Engines – NOx Reduction Agent AUS 32 |
| Category | Diesel Engines – NOx Reduction Agent AUS 32 |
| Scheme | ISI mark licence (Scheme-I) |
| Notified under | Diesel Engines – NOx Reduction Agent AUS 32 (Quality Control) Order, 2024, S.O. 922(E), dated 26th February 2024 · Order PDF |
Editions and amendments of IS 17042
| Edition | Published | Status |
|---|---|---|
| IS 17042 (Part 1):2020 Diesel Engines — NOx Reduction Agent AUS 32 Part 1 Quality Requirements ( First Revision ) | 31 Jul 2020 | Current, next review 31 Mar 2030 |
| IS 17042 (Part 1):2018 Diesel engines - Nox reduction agent aus 32: Part 1 quality requirements | Withdrawn 20 May 2024 |
No amendments to the current edition are listed by BIS.
Marking fee for IS 17042
BIS charges an annual minimum marking fee for the ISI mark under IS 17042, set by unit size, plus a per-unit rate once production passes the minimum:
| Unit size | Minimum marking fee (per year) |
|---|---|
| Large | ₹1,07,000 |
| Medium | ₹86,000 |
| Small | ₹53,500 |
| Micro | ₹21,400 |
Unit rate: ₹6 per kl. Source: BIS marking fee schedule for Scheme-I products, September 2026.
Sampling and key tests for IS 17042
From the BIS product manual for IS 17042, which BIS officers and applicants follow for certification:
Tests BIS can carry out in a day during factory inspection:
- All tests can be done in a day
The full type test covers every clause of IS 17042; the list above is what can be checked on site.
ISI licences under IS 17042
BIS records 152 operative licences (164 including deferred, cancelled or under stop marking). Most licensed factories are in Gujarat (18), Maharashtra (16), Tamil Nadu (16), Karnataka (13), Haryana (12).
Testing against IS 17042
BIS inspects the factory and has samples tested to the full Indian Standard at a BIS or BIS-recognised laboratory. After grant, the factory keeps testing production under the Scheme of Inspection and Testing, and BIS draws factory and market samples.
The test report has to cover every clause of IS 17042 that applies to the product, in the edition current on the date of testing. When BIS revises IS 17042 or replaces it with a new edition, existing licence holders move to the new edition by the date BIS sets in its notification.
How to get an ISI mark licence under IS 17042
The licence is granted to the manufacturer for a specific factory and product. Indian factories apply under Scheme-I; overseas factories apply under the Foreign Manufacturers Certification Scheme (FMCS) and must nominate an Authorised Indian Representative.
- Confirm the exact Indian Standard and the varieties to cover
- Get the product tested at a BIS-recognised lab (simplified procedure) or arrange BIS sampling
- Apply on Manak Online with factory, quality-control and test documents
- BIS factory inspection and sample verification
- Grant of licence, then marking with the ISI mark and CM/L number
Timeline. BIS targets 30 days under the simplified procedure (applying with a recent lab test report) and 90 days under the normal procedure. Overseas factories under FMCS typically take around 6 months.
Fees. Application fee ₹1,000 and annual licence fee ₹1,000, inspection charges of ₹7,000 per man-day, testing charges, and an annual minimum marking fee set for each Indian Standard (with concessions for micro and small units).
Mark. Certified products carry the ISI Standard Mark with the IS number and the CM/L-XXXXXXXXXX licence number.
Frequently asked questions
What does IS 17042 cover?
IS 17042 (Part-1): 2018: Diesel Engines – NOx Reduction Agent AUS 32. BIS has made certification against it compulsory for diesel engines – NOx reduction agent AUS 32.
Is BIS certification under IS 17042 mandatory?
Yes, for diesel engines – NOx reduction agent AUS 32, under the Diesel Engines – NOx Reduction Agent AUS 32 (Quality Control) Order, 2024, S.O. 922(E). The product needs a valid BIS licence (ISI mark) and must carry the ISI Standard Mark with the IS number and the CM/L-XXXXXXXXXX licence number.
Where is a product tested for IS 17042?
BIS inspects the factory and has samples tested to the full Indian Standard at a BIS or BIS-recognised laboratory. After grant, the factory keeps testing production under the Scheme of Inspection and Testing, and BIS draws factory and market samples.
How long does IS 17042 BIS certification take?
BIS targets 30 days under the simplified procedure (applying with a recent lab test report) and 90 days under the normal procedure. Overseas factories under FMCS typically take around 6 months.
Source: BIS lists of products under compulsory certification (Scheme-I, Scheme-II), checked October 2026. See the full BIS product list or all Indian Standards.
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