[400TT]

Baz, I would recommend locking in the testing procedures as well. Because when you purchase the kit the manufacturer should supply all the docs for the current testing or at least the buyer knows what is currently required from the engineers. But there is nothing stopping the RTA from introducing new testing procedures and requirements while the kit is being built. This is separate from the ADR's that the kit is being built to etc. The testing procedures and requirements can be changed independently to the ADR's. i.e. the requirement for certified seat belt mounts, compared to physically testing the seat belt mounts, same goes for anti-intrusion bars etc.

Just making sure your wording covers both.