Full Text
REGD. No. D. L.-33004/99
The Gazette of India
CG-DL-E-01052025-262798
EXTRAORDINARY
PART II-Section 3-Sub-section (i)
PUBLISHED BY AUTHORITY
No. 230]
NEW DELHI, TUESDAY, APRIL 29, 2025/ VAISAKHA 9, 1947
MINISTRY OF ROAD TRANSPORT AND HIGHWAYS
NOTIFICATION
New Delhi, the 28th April, 2025
G.S.R. 269(E).—The following draft of certain rules further to amend the Central Motor Vehicles
Rules, 1989, which the Central Government proposes to make in exercise of the powers conferred by section 110
of the Motor Vehicles Act, 1988 (59 of 1988), is hereby published as required by sub-section (1) of section 212
of the said Act, for information of all persons likely to be affected thereby; and notice is hereby given that the said
draft rules will be taken into consideration after the expiry of thirty days from the date on which the copies of this
notification as published in the Gazette of India, are made available to the public;
The objections or suggestions which may be received from any person with respect to the said draft rules
before the expiry of the period aforesaid will be considered by the Central Government.
Objections and suggestions to these draft rules, if any, may be sent to the Additional Secretary
(Transport), email: comments-morth@gov.in, Ministry of Road Transport and Highways, Transport Bhawan,
Parliament Street, New Delhi-110001.
Draft Rules
1. Short title and commencement. — (1) these rules may be called as the Central Motor Vehicles (..........
Amendment) Rules, 2025.
(2) Save as otherwise provided in these rules, they shall come into force on the date of their final publication in
the Official Gazette.
2. In the Central Motor Vehicle Rules, 1989 (hereinafter referred to as the said rules), rule 115A, substitute
following title for existing title, namely: -
"115A. Emission of Smoke and vapour from agricultural tractors, power tillers, construction equipment
vehicles and combined harvesters driven by Internal Combustion Engines.
3. In the said rules, in rule 115A, in sub-rule (9), in clause (c), for existing Table 1, following Table 1 shall be
substituted namely: -
Table 1
(TREM Stage IV)
Applicable emission limit for Non-Road Steady Cycle (NRSC) and Non-Road Transient Cycle (NRTC)
test cycle.
+------------+---------------+-------+-------+-------+-------+-----------+
| Category, kW | Applicable | CO(1) | HC(1) | NOX | PM(1) | Test cycle* |
| | with effect | | | | | |
| | from | | | | | |
+============+===============+=======+=======+=======+=======+===========+
| | | g/kWh | g/kWh | g/kWh | g/kWh | |
+------------+---------------+-------+-------+-------+-------+-----------+
| 37≤P<56 | | 5.0 | 4.7 | | 0.025 | |
| | | | (HC+NOx) | | (2) | |
| 56≤P<130 | 1st January | 5.0 | 0.19 | 0.4 | 0.025 | NRSC and |
| | 2023 | | | | | NRTC |
| 130≤P<560 | | 3.5 | 0.19 | 0.4 | 0.025 | |
+------------+---------------+-------+-------+-------+-------+-----------+
*Test cycle as described in AIS-137 and as amended from time to time.
(1) Not applicable for engine fuelled with Hydrogen. In case of engines where HC+NOx limits are specified,
for Hydrogen IC engines, the limit shall be only on NOx emissions.
(2) Applicable for CI engines only
4. In the said rules, in rule 115A, in sub-rule (9), in clause (c), for the existing Table 2 the following Table 2 shall
be substituted, namely. -
Table 2
(TREM Stage – V)
Applicable emission limit for Non-Road Steady Cycle (NRSC) and Non-Road Transient Cycle (NRTC)
test cycle.
+------------+---------------+-------+-------+-------+-------+-------+-----------+
| Category, kW | Applicable | CO(1) | HC(1) | NOX | PM(1) | PN(1) | Test cycle |
| | with effect | | | | | | |
| | from | | | | | | |
+============+===============+=======+=======+=======+=======+=======+============+
| | | g/kWh | g/kWh | g/kWh | g/kWh | #/kWh | |
| | | | | | | hour | |
+------------+---------------+-------+-------+-------+-------+-------+------------+
| P<8 | | 8.0 | 7.5 | 0.4 | | | NRSC |
| | | | (Hc+NOx) | (2) | | | |
| 8≤P <19 | | 6.6 | 7.5 | 0.4 | | | |
| | | | (HC+NOx) | (2) | | | |
| 19≤P< 37 | 1st April | 5.0 | 4.7 | 0.015 | | 1x1012| NRSC and |
| | 2026 | | (HC+NOx) | (2) | | (2) | NRTC |
| 37≤P<56 | | 5.0 | 4.7 | 0.015 | | 1x1012| |
| | | | (HC+NOx) | (2) | | (2) | |
| 56≤P<130 | | 5.0 | 0.19 | 0.4 | 0.015 | 1x1012| |
| 130≤P<560 | | 3.5 | 0.19 | 0.4 | 0.015 | 1x1012| |
| P≥560 | | 3.5 | 0.19 | 3.5 | 0.045 | | NRSC |
+------------+---------------+-------+-------+-------+-------+-------+------------+
(1) Not applicable for engine fuelled with Hydrogen. In case of engines where HC+NOx limits are specified, for
Hydrogen IC engines, the limit shall be only on NOx emissions.
(2) Applicable for CI engines only
5. In the said rules, in rule 115A, in sub-rule (9), in clause (c), the existing note (v) shall be replaced with following
text, namely: -
"(v) The emission of visible pollutant (smoke) for engines other than P.I. engines shall not exceed the limit
values of smoke density when expressed as light absorption coefficients as given in Annexure -I of sub-
rule (9) of rule 115, when tested on engine dynamometer at full load at six speeds as per procedure laid
down in AIS137 and as amended from time to time."
6. In the said rules, in rule 115A, in sub-rule (9), in clause (c), the existing note (x) shall be replaced with following
text, namely: -
"(x) The limits as mentioned in Table 1 and 2 shall be applicable for engines fuelled by following fuels: CNG,
Bio-CNG, Bio-Gas, LNG, LPG, HCNG, Diesel (B7), Ethanol (ED95), Bio-diesel blends up to 100%,
hydrogen and dual fuelled engines driven by Diesel and any fuel out of CNG, Bio-CNG or LNG.
For type approval and conformity of production, the test fuel shall be reference fuel or commercial fuel as
specified below;
a) Reference Natural Gas fuel used in Natural Gas or Bio-Methane mono-fuel or bi-fuel vehicles shall be as
per Annexure IV-L (G20, G23 and G25).
b) Reference LPG fuel used in LPG mono-fuel or bi-fuel vehicles shall be as per Annexure IV-M (Fuel A
and Fuel B).
c) However, in case of non-availability of reference fuels for CNG / LPG, the commercially available CNG
as per BIS 15958: 2012 and LPG as per BIS 14861:2000, as amended from time to time, shall be used for
the purpose of Type Approval and Conformity of Production.
d) The Reference Ethanol fuel (ED95) shall be as specified in Annexure IV-R.
e) The Reference Diesel fuel (B7) OR Commercial Diesel fuel shall be as specified in Annexure IV–T or
Annexure IV-V respectively.
f) The reference fuel Biogas (Bio-methane) shall be as per IS 16087:2013, as amended time to time.
g) In case of LNG, fuel shall comply with the requirements as provided in Annexure IV- LA
h) The vehicle/ engine fuelled with biodiesel blends up to 7% shall be tested with reference diesel (B7) or
commercial fuel. Vehicles fuelled with biodiesel blends above 7%, shall be tested with respective blends.
Biodiesel used in blends shall be as per IS 15607 as amended from time to time and the diesel used for
blends shall be as specified in Annexure IV–T or Annexure IV-V respectively.
i) The reference Hydrogen Fuel shall be as specified in the Annexure IV-W.
j) The HCNG fuel shall be as specified in Annexure IV- ZE (IS:17314: 2019).
7. In the said rules, in rule 115A, in sub-rule (9), in clause (c), the following notes shall be inserted after note (xvi),
namely: -
"(xvii) Test procedure and safety guidelines for dedicated CNG / Bio-CNG / LNG / LPG and dual fuel CNG
or Bio-CNG or LNG vehicles, kit component including installation thereof shall be as per AIS 024,
AIS 028 (Rev.1) as amended from time to time, till such time as corresponding BIS specifications
are notified under the Bureau of Indian Standard (BIS) Act, 2016 (11 of 2016).
(xviii) Test procedure and safety guidelines for Hydrogen fuelled IC engines / vehicles, kit component
including installation thereof shall be as per AIS 195 A, as amended from time to time, till such time
as corresponding BIS specifications are notified under the Bureau of Indian Standard (BIS) Act,2016
(11 of 2016)"
8. In the said rules, in rule 115A, in sub-rule (10), in clause (c), for existing Table 1, following Table 1 shall be
substituted namely: -
Table 1
(CEV Stage - IV)
Applicable emission limit for Non-Road Steady Cycle (NRSC) and Non-Road Transient Cycle (NRTC)
test cycle.
+------------+---------------+-------+-------+-------+-------+-----------+
| Category, kW | Applicable | CO(1) | HC(1) | NOX | PM(1) | Test cycle* |
| | with effect | | | | | |
| | from | | | | | |
+============+===============+=======+=======+=======+=======+===========+
| | | g/kWh | g/kWh | g/kWh | g/kWh | |
+------------+---------------+-------+-------+-------+-------+-----------+
| 37≤P<56 | | 5.0 | 4.7 | | 0.025 | |
| | | | (HC+NOx) | | (2) | |
| 56≤P<130 | 1st October | 5.0 | 0.19 | 0.4 | 0.025 | NRSC and |
| | 2021 | | | | | NRTC |
| 130≤P<560 | | 3.5 | 0.19 | 0.4 | 0.025 | |
+------------+---------------+-------+-------+-------+-------+-----------+
* Test cycle as described in AIS-137 and as amended from time to time.
(1) Not applicable for engine fuelled with Hydrogen. In case of engines where HC+NOx limits are specified,
for Hydrogen IC engines, the limit shall be only on NOx emissions.
(2) Applicable for CI engines only
9. In the said rules, in rule 115A, in sub-rule (10), in clause (c), for existing Table 2, following Table 2 shall be
substituted namely: -
Table 2
(CEV Stage - V)
Applicable emission limit for Non-Road Steady Cycle (NRSC) and Non-Road Transient Cycle (NRTC)
test cycle.
+------------+---------------+-------+-------+-------+-------+-------+-----------+
| Category, kW | Applicable | CO(1) | HC(1) | NOX | PM(1) | PN(1) | Test cycle |
| | with effect | | | | | | |
| | from | | | | | | |
+============+===============+=======+=======+=======+=======+=======+============+
| | | g/kWh | g/kWh | g/kWh | g/kWh | #/kWh | |
| | | | | | | hour | |
+------------+---------------+-------+-------+-------+-------+-------+------------+
| P<8 | | 8.0 | 7.5 | 0.4 | | | NRSC |
| | | | (Hc+NOx) | (2) | | | |
| 8≤P <19 | | 6.6 | 7.5 | 0.4 | | | |
| | | | (HC+NOx) | (2) | | | |
| 19≤P< 37 | 1st April | 5.0 | 4.7 | 0.015 | | 1x1012| NRSC and |
| | 2025 | | (HC+NOx) | (2) | | (2) | NRTC |
| 37≤P<56 | | 5.0 | 4.7 | 0.015 | | 1x1012| |
| | | | (HC+NOx) | (2) | | (2) | |
| 56≤P<130 | | 5.0 | 0.19 | 0.4 | 0.015 | 1x1012| |
| 130≤P<560 | | 3.5 | 0.19 | 0.4 | 0.015 | 1x1012| |
| P≥560 | | 3.5 | 0.19 | 3.5 | 0.045 | | NRSC |
+------------+---------------+-------+-------+-------+-------+-------+------------+
(1) Not applicable for engine fuelled with Hydrogen. In case of engines where HC+NOx limits are specified, for
Hydrogen IC engines, the limit shall be only on NOx emissions.
(2) Applicable for CI engines only
10. In the said rules, in rule 115A, in sub-rule (10), in clause (c), the existing note (vi) shall be replaced with
following text, namely: -
"(vi) The emission of visible pollutant (smoke) for engines other than P.I. engines shall not exceed the limit
values of smoke density when expressed as light absorption coefficients as given in Annexure -I of sub-
rule (9) of rule 115, when tested on engine dynamometer at full load at six speeds as per procedure laid
down in AIS137 and as amended from time to time."
11. In the said rules, in rule 115A, in sub-rule (10), in clause (c), the existing note (xi) shall be replaced with
following text, namely: -
"(xi) The limits as mentioned in Table 1 and 2 shall be applicable for engines fuelled by following fuels: CNG,
Bio-CNG, Bio-Gas, LNG, LPG, HCNG, Diesel (B7), Ethanol (ED95), Bio-diesel blends up to 100%,
hydrogen and dual fuelled engines driven by Diesel and any fuel out of CNG, Bio-CNG or LNG.”
For type approval and conformity of production, the test fuel shall be reference fuel or commercial fuel as
specified below
a) Reference Natural Gas fuel used in Natural Gas or Bio-Methane mono-fuel, or bi-fuel vehicles shall be as
per Annexure IV-L (G20, G23 and G25).
b) Reference LPG fuel used in LPG mono-fuel or bi-fuel vehicles shall be as per Annexure IV-M (Fuel A
and Fuel B).
c) However, in case of non-availability of reference fuels for CNG / LPG, the commercially available CNG
as per BIS 15958: 2012 and LPG as per BIS 14861:2000, as amended from time to time, shall be used for
the purpose of Type Approval and Conformity of Production.
d) The Reference Ethanol fuel (ED95) shall be as specified in Annexure IV-R.
e) The Reference Diesel fuel (B7) OR Commercial Diesel fuel shall be as specified in Annexure IV–T or
Annexure IV-V respectively.
f) The reference fuel Biogas (Bio-methane) shall be as per IS 16087:2013, as amended time to time.
g) In case of LNG, fuel shall comply with the requirements as provided in Annexure IV- LA.
h) The vehicle/ engine fuelled with biodiesel blends up to 7% shall be tested with reference diesel (B7) or
commercial fuel. Vehicles fuelled with biodiesel blends above 7%, shall be tested with respective blends.
Biodiesel used in blends shall be as per IS 15607 as amended from time to time and the diesel used for
blends shall be as specified in Annexure IV–T or Annexure IV-V respectively.
i) The reference Hydrogen Fuel shall be as specified in the Annexure IV-W.
j) The HCNG fuel shall be as specified in Annexure IV- ZE (IS:17314: 2019).
12. In the said rules, in rule 115A, sub-rule 10, the following note shall be inserted after note (xvii), namely: -
"(xviii) Test procedure and safety guidelines for dedicated CNG / Bio-CNG / LNG / LPG and dual fuel CNG
or Bio-CNG or LNG vehicles, kit component including installation thereof shall be as per AIS 024,
AIS 028 (Rev.1) as amended from time to time, till such time as corresponding BIS specification
are notified under the Bureau of Indian Standard (BIS) Act,2016 (11 of 2016)"
(xix) Test procedure and safety guidelines for Hydrogen fuelled IC engines / vehicles, kit component
including installation thereof shall be as per AIS 195 A, as amended from time to time, till such time
as corresponding BIS specifications are notified under the Bureau of Indian Standard (BIS) Act,2016
(11 of 2016)"
13. In the said rules, in rule 115A, after Annexure IV- ZD, the following Annexure shall be inserted, namely: -
ANNEXURE IV-ZE
[See rule 115 A (9) and (10)]
Hydrogen Enriched Compressed Natural Gas (HCNG) - Specification
Sr. No. (1), Characteristic (2), Requirement (3), Test Method (4)
i), Hydrogen (percent volume), 18.0±1.0, IS 15130 (Part 3)
ii), Methane (percent volume), Min, 72.0,
iii), Other Hydrocarbons (percent volume),
a) Ethane, Max, 6.0, IS 15130 (Part 3)
b) C3 and higher HC, Max, 3.0,
c) C6 and higher HC, Max, 0.5,
d) Total unsaturated HC, Max, 0.5,
iv), Impurities,
Water content, mg/m³, Max, 5.0, IS 15641 (Part 2)
Total sulphur¹), mg/m³, Max, 2.0, ASTM D3246
Oxygen, percent volume, Max, 0.5, IS 15130 (Part 3)
Carbon dioxide and Nitrogen, percent volume, Max, 3.5, IS 15130 (Part 3)
Carbon monoxide, percent mole, Max, 0.1, IS 15130 (Part 3)
Total sulphur includes the sulphur content of odorant
[F. No. RT-11028/22/2016-MVL]
MAHMOOD AHMED, Under Secy.
Note: The principal rules were published in the Gazette of India, Extraordinary, Part-II, section 3, sub-section (i)
vide notification number ...., dated the ...... and last amended vide notification number .......