Not wanting to be pedantic Jeff, however, the Highway Code contains a great deal of legal information, in addition to many guidelines as to safety for you and other road users, i.e. all the signage is legal, the stopping distances(yes, I know) are a guideline, and a dated one at that
Cheers
PS Did you know that a mobility scooter/wheelchair must not exceed 8mph if driven on the highway and display flashing amber lights?