HC Deb 20 October 1975 vol 898 cc50-1W
Mr. Richard Wainwright

asked the Secretary of State for Social Services how many circulars and joint circulars to local authorities and local health authorities

Local Authorities Local Health Authorities
Period 1st April 1973 to 31st March 1974 … 133 (including 9 joint circulars) 63 (including 6 joint circulars)
Period 1st April 1974 to 31st March 1975 … 69 (including 9 joint circulars)

Local health authorities ceased to exist on 31st March 1974.