These Regulations implement various European Community Commission and Council Directives. The principal changes made by the Regulations with respect to previous legislation are as follows: (a) certain provisions in Directive 76/371/EC on sampling of feeding staffs are now fully implemented (reg. 3 and Schedule 1); (b) parallel EC requirements as to analysis of feeding staffs contained in that Article are implemented (reg. 6 and Schedule 2); (c) in accordance with new EC requirements-(i) previous EC methods of analysis are excluded (ii) a new method of analysis for the determination of amino acids is added and a revised method for oils and fats substituted for the existing one, and (iii) procedures on the detection and estimation of animal constituents in feeding stuffs are introduced, (reg. 6 and Schedule 2); (d) particular national methods of analysis relating to magnesium (gravimetric method) and calcium (atomic absorption method) are no longer covered (reg. 6 and Schedule 2); (e) the qualifications prescribed, for the purposes of section 67(5) of the Agriculture Act 1970, as those which a person must have in order to be appointed as an agricultural analyst or deputy agricultural analyst are amended (reg. 5). (Completed by 3 Schedules)