http://www.legislation.gov.uk/ukpga/1993/1/section/2Gas (Exempt Supplies) Act 1993 An Act to amend section 5 of the Gas Act 1986; and for connected purposes.1993-01-19texttext/xmlenStatute Law Database2011-05-271996-03-01F12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .