Which STCW 2010 regulations contain mandatory minimum requirements for certificates of competency for the master and deck department?

 Reg. II/2: Mandatory minimum requirements for certification of masters and chief mates on ships of 500 gross tonnage or more; Reg. II/3: Mandatory minimum requirements for certification of officers in charge of a navigational watch and of masters on ships of less than 500 gross tonnage; Reg. II/4: Mandatory minimum requirements for certification of ratings forming part of a navigational watch; and Reg. II/5: Mandatory minimum requirements for certification of ratings as able seafarer deck.