Unfair terms in English contract law are regulated under three major pieces of legislation, compliance with which is enforced by the Office of Fair Trading. The Unfair Contract Terms Act 1977 is the first main Act, which covers some contracts that have exclusion and limitation clauses. For example, it will not extend to cover contracts which are mentioned in Schedule I, consumer contracts, and international supply contracts. The Unfair Terms in Consumer Contracts Regulations 1999 partially lays on top further requirements for consumer contracts. The Consumer Protection from Unfair Trading Regulations 2008 concerns certain sales practices.