Proposal to clarify that the term “special joint” does not include flexible components supporting coupling articulation (as is pertinent to Class C50 couplings).

Proposal to add a line for restrictions on the use of Class T couplings to the type-approval communication form.

Revised text with transitional provisions for the proposal (GRSG/2019/6) to specify that "the motor-vehicle’s user instructions (e.g. owner’s manual, vehicle handbook) shall clearly specify that the removable or repositionable mechanical coupling device shall always be removed or repositioned when it is not in use.” The purpose is to comply with an EU General Safety Regulation provision that prohibits couplings from obscuring rear lighting components or registration plates.