EASA Air Ops
The job of an aviation engineer must be in compliance with air regulations as provided by EASA. These regulations guarantees a maximum safety in flight operation based on the actual knowledge of existing risks within the aviation business industry. Many people working together in that business. Therefore, everybody needs to be up to date with all existing regulations to create your standard procedures according the current version of EASA Air Ops. I am familiar with it.
In my career as a flight operation engineer and manager, compliance to these regulations, for the creation of internal procedures described and written in the OPS Manual Part B and others, is vital. Those manuals are also the basis of the daily business for each pilot in an airline.