HC Deb 01 February 1968 vol 757 c376W
50. Mr. Maddan

asked the Postmaster-General what sizes and weights of envelope will be accepted for general election communications.

Mr. Joseph Slater

My right hon. Friend proposes to bring the permissible dimensions for these envelopes into line with the Post Office Preferred range by increasing the minimum from 4 in. x 2¾ in. to 5½ x 3½ in. and the maximum from 9 in. x 4½ in. to 9¼ in. x 4¾ in. Envelopes would need to be oblong with the longer side at least 1.414 times the shorter; preferably they should be made from paper weighing at least 63 grammes per square metre. As now, envelopes and their contents must not exceed 2 oz. in weight.