The Basic Regulation of the European Union:
Regulation No 216/2008 of European Parliament and of the Council

Implementing Rules to the Basic Regulation
Commission Regulation (EU) No 1178/2011
Aircrew Regulation - Annexes I to IV - Flight Crew Licensing (FCL) and Medical (MED)

Supplementary and explanatory notes on the Implementing Rules
Acceptable Means of Compliance (AMC) and Guidance Material (GM) to Part-MED

National law - Areas which are not regulated by EU laws
Ministerial Decree No. 27/2014. (IV. 30) of NFM (Ministry of National Development) on the requirements for civil aviation crew fitness and rules pertaining to the appointments and activities of the authorities assessing medical fitness.