The London Authorities (Health and Welfare Services) Order 1964

Food and Drugs

9.  Anything duly done before 1st April 1965 in Greater London, or in the urban districts of Potters Bar, Staines or Sunbury-on-Thames by or to any local authority or food and drugs authority or an authorised officer of either such authority in the exercise of any function under the Food and Drugs Act 1955 or regulations having effect thereunder, shall be deemed as from that date to have been duly done by or to the authority by whom the function has become exercisable or, as the case may be, an authorised officer of such authority, and any instrument in force immediately before that date, if and so far as it was made in the exercise of any such function, shall continue in force after that date until varied or revoked in the exercise of that function by such latter authority.