Power-Assisted Bicycles 74. Sir J. Langford-Holt asked the Secretary of State for the Environment why, contrary to United Nations agreement, the United Kingdom classes 50 c.c. assisted bicycles as motor vehicles and so insists on registration; and whether, following the signing by the United Kingdom of the Treaty of Accession to the European Community, he will seek to bring the United Kingdom practice into line with all other European nations. Mr. Peyton The present registration requirements in this country do not conflict with any international agreement; they assist the enforcement of road traffic law. I have no plans to alter them.