Direktiva Sveta 76/116/EGS z dne 18. decembra 1975 o približevanju zakonodaj držav članic v zvezi z gnojili [4], Direktiva Sveta 80/876/EGS z dne 15. julija 1980 o približevanju zakonodaj držav članic v zvezi z enojnimi gnojili iz amonijevega nitrata z visoko vsebnostjo dušika [5], Direktiva Komisije 87/94/EGS z dne 8. decembra 1986 o približevanju zakonodaj držav članic v zvezi s postopki nadzora značilnosti, omejitev in odpornosti proti eksploziji enojnih gnojil iz amonijevega nitrata z visoko vsebnostjo dušika [6] in Direktiva Komisije 77/535/EGS z dne 22. junija 1977 o približevanju zakonodaj držav članic v zvezi z metodami vzorčenja in analize gnojil [7] so bile večkrat bistveno spremenjene.
Council Directive 76/116/EEC of 18 December 1975 on the approximation of the laws of the Member States relating to fertilisers(4), Council Directive 80/876/EEC of 15 July 1980 on the approximation of the laws of the Member States relating to straight ammonium nitrate fertilisers of high nitrogen content(5), Commission Directive 87/94/EEC of 8 December 1986 on the approximation of the laws of the Member States relating to procedures for the control of characteristics of, limits for and resistance to detonation of straight ammonium nitrate fertilisers of high nitrogen content(6), and Commission Directive 77/535/EEC of 22 June 1977 on the approximation of the laws of the Member States relating to methods of sampling and analysis for fertilisers(7), have been substantially amended several times.