Draft Notification issued for Fire Detection and Protection system in Passenger (or Occupant) Compartment in buses



New Delhi, the 21st September, 2021

G.S.R. 645(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

The Ministry of Road Transport & Highways has issued a Draft Notification on 21st September 2021 for introducing the Fire Alarm System and Fire Protection System in the Passenger (or Occupant) Compartment in buses, through an amendment in AIS (Automotive Industry Standard)-135.

At present, fire detection, alarm and suppression systems are notified for fires originating from the engine compartment only.

The draft notification is intended for fire detection and protection in the passenger compartment for Type III buses [‘Type III’ buses are those designed and constructed for long distance seated passenger transport) and School Buses.  Studies on fire incidents indicate that injuries to passengers are mainly due to heat and smoke in the passenger compartment.  These injuries can be prevented if the heat and smoke in the passenger compartment is controlled by providing an additional evacuation time (of at least 3 minutes) to the occupants by thermal management during fire incidents.
Fire Detection and Protection system

(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 shall be taken into consideration after the expiry of thirty days from the date on which the copies of this notification as published in the Official Gazette, are made available to the public;

2. 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;

3. Objections and suggestions to these draft rules, if any, may be sent to the Joint Secretary (MVL), email: [email protected], Ministry of Road Transport and Highways, Transport  Bhawan, Parliament Street, New Delhi-110 001.

Draft Rules

1.  Short  Title  and  commencement.  -  (1)  These  rules  may  be  called  the  Central  Motor  Vehicles (……Amendment) Rules, 2021.

(2) 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 as the said Rules), after the last proviso under sub-rule (1) in Rule 125-C, the following proviso shall be inserted as under:

Provided also that the provisions of AIS-135 shall be applicable to Type III buses, as specified in AIS- 052(Rev.1), which are manufactured on and after the 1st day of October, 2022;

3. In the said rules, after sub-rule (2) in Rule 125-C, the following proviso shall be inserted as under:-

Provided that the provisions on fire protection in occupant compartment of AIS-135 shall be applicable to school Buses, as specified in AIS-063, which are manufactured on and after the 1st day of October, 2022;

4. In rule 125-C, sub clause (7), Table 1, after Sr. No. 7, Sr. No. 7A shall be inserted as under: -

Sr. No.

Parts/components/ Assemblies/

Performance Parameter

Vehicle Category

Requirement / Standards

Date of commencement / validity


Fire Alarm and Protection system in occupant compartment

Type III buses of category M3 and school buses


1st October, 2022

[F. No. RT-11016/37/2021-MVL]

Note. The principal rules were published in the Gazette of India, Extraordinary, Part II, Section 3, Sub-section (i) vide notification number G.S.R. 590(E), dated the 2nd June, 1989 and last amended vide notification number G.S.R.           (E) dated          _.

A technical solution to this problem has been developed by the Ministry in consultation with various stakeholders, including DRDO.  A water mist- based active fire protection system has been designed and developed alongwith a fire alarm system. Simulation studies have demonstrated that the designed system is able to manage the temperature in the passenger compartment within 50 degree C centigrade in less than 30 seconds of mist operation.

Comments have been sought on this notification from stakeholders within a period of thirty days.

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