EU OPS is a European Union (EU) regulations specifying minimum safety and related procedures for commercial passenger and cargo fixed-wing aviation. The legislation is known officially as Council Regulation (EEC) No 3922/91 on the harmonisation of technical requirements and administrative procedures in the field of civil aviation.

The regulations are derived from and very similar to JAR-OPS 1, after consultations between the EU and Joint Aviation Authorities (JAA) in 1997. Since then, the regulations are about to be superseded by EASA-OPS. The regulations concern Training, Documentation, Procedures and Compliances in the following categories

Operator certification and supervision
Operational procedures
All weather operations
Performance general
Performance class a
Performance class b
Performance class c
Mass and balance
Instruments and equipment
Communication and navigation equipment
Aeroplane maintenance
Flight crew
Cabin crew
Manuals, logs and records
Flight and duty time limitations and rest requirements
Transport of dangerous goods by air
Security