1. Council Regulation (EEC) No. 3922/91 of 16 December 1991 on the harmonisation to technical requirements and administrative procedures in the field of civil aviation - European Air Law (Update) View the chapter 1. Council Regulation (EEC) No. 3922/91 of 16 December 1991 on the harmonisation to technical requirements and administrative procedures in the field of civil aviation by - European Air Law (Update) 1. Council Regulation (EEC) No. 3922/91 of 16 December 1991 on the harmonisation to technical requirements and administrative procedures in the field of civil aviation