Two Clauses have been deleted from the ADR, relating to conditions that apply to the acceptance of seatbelts complying with the accepted alternative UNECE regulation. The first prohibited the use of non-locking retractors, while the second required seatbelts complying with the UNECE regulation to be further tested for the effects of environmental degradation including sunlight, dust, temperature and humidity.
The Clause prohibiting non-locking retractors is redundant, as the UNECE regulation no longer permits these retractors. The other Clause relating to additional environmental degradation testing was found to be unnecessary as the corresponding requirements in the UNECE regulation are either identical (effects of dust), more severe (sunlight degradation), or not substantially different from the ADR requirements (temperature and humidity effects).