(38)On grounds of efficiency, the normal time limits for the regulatory procedure with scrutiny should be curtailed for the adoption of updates to the list of intended uses. When, on imperative grounds of urgency, the normal time limits for the regulatory procedure with scrutiny cannot be complied with, the Commission should be able to apply the urgency procedure provided for in Article 5a(6) of Decision 1999/468/EC for the adoption of amendments to the list of materials whose placing on the market or use for animal nutritional purposes is restricted or prohibited.