Page 272 - The Central Motor Vehicles Rules, 1989

244 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115B

(b) CNG kit approved on the vehicle for specific engine capacity can be installed
on the base model and its variants fitted with the same capacity engine;
1
[(c) The in-use vehicles when converted to operate on CNG shall meet the type
approval norms of diesel vehicles corresponding to the year of their
manufacture subject to the following minimum norms:—
(i) for the vehicles manufactured upto the 31st day of March, 2000, the
type approval norms equivalent to India-2000 (India Stage-I) norms as
applicable under these rules;
2
[(ii) for the vehicles manufactured on and after the 1st April, 2000 and up
to the 30th September, 2010, the type approval norms as specified in
the Bharat Stage-II norms;]
(iii) for the vehicles manufactured on and after the 1st day of April, 2005,
the type approval norms as applicable subject to minimum of Bharat
Stage-III emission norms in case of four wheelers and Bharat Stage-II
emission norms for two and three wheelers till the validity of these
norms;]
3
[(iv) for the vehicles manufactured on and after 1st April, 2010, the type
approval norms as applicable, shall be subject to minimum of Bharat
Stage-IV emission norms in case of four wheelers and Bharat Stage-III
emission norms in case of two and three wheelers till the validity of
these norms;]
(d) Vehicles offered for Type Approval to the testing agency referred in rule
126 of Central Motor Vehicles Rules, 1989 shall have to comply with fitness
requirement as applicable under these rules;
(e) Tests for particulate matter emission of visible pollutants (smoke) under
these rules shall not be applicable;
(f) Separate Type Approval is required for mechanically controlled and
electronically controlled diesel fuel injected vehicles when
retrofitted/modified for CNG operation.
Explanations : In the case of O.E. or conversion of “In-Use” vehicles by
modification—
(a) for the purpose of granting Type Approval to the vehicle fitted with CNG
engine (converted from diesel engine) as O.E., or conversion by
modification of “In-Use” diesel vehicles, performance tests shall be carried
out as per the Table given below by the test agencies, namely:—
TABLE
Test Reference Document (as amended from time to time)
(1) (2)
(i) Mass emission tests MOST/CMVR/TAP-115/116 and notifications issued
by the Government of India in this respect
(ii) Engine performance tests IS : 14599-1999
(iii) Gradeability In accordance with notification issued under rule 124
of Central Motor Vehicles Rules, 1989

1 Substituted vide GSR 589(E), dt. 16-9-2005, w.e.f. 16-9-2006.
2 Substituted vide GSR 498(E), dt. 16-6-2015, w.e.f. 16-6-2015.
3 Substituted vide GSR 84(E), dt. 9-2-2009, w.e.f. 9-2-2009.