http://www.legislation.gov.uk/uksi/1980/369/madeThe National Health Service (Dental and Optical Charges) (Scotland) Amendment Regulations 1980enKing's Printer of Acts of Parliament1980-03-21 The National Health Service (Dental and Optical Charges) (Scotland) Amendment Regulations 1980InstrumentThe National Health Service (Dental and Optical Charges) (Scotland) Amendment Regulations 1984