CTC Technical Officer, Chris Juden has long campaigned for the standard, and helped draft it.
A bicycle child seat is not an easy thing to write standards about,said Juden.
Its not just the seat: the bikes you can put them on vary so much; and then you have different national traditions to contend with. The Germans dont like front seats on the handlebars and the Dutch dont like the straps to be so secure for when the bike goes in the canal.
"There were times when the work became completely bogged down in seemingly irreconcilable differences and insoluble problems; but you cant just give up."
A statement from CTC said: "We are confident that reputable childseat manufacturers will be ensuring that their products provide the highest certifiable levels of safety and marking them accordingly."