Proposal for amendments to the proposal to permit the use of a positive lock type system as an alternative to a friction type parking brake system.

Proposal to clarify provisions concerning the type-IIA test and the test mass of vehicles authorized to tow trailer(s).

Proposal to clarify the need to apply, when relevant, the Type II test as required by Annex 4 under paragraph 1.8.2.5 (b) in Annex 15 for alternative brake lining purposes.

Proposal to allow periodical technical inspection testing and verification of heavy-duty braking systems without burdening the vehicle
owners/managers.