Accept, handle, and carry materials regulated as Hazardous Materials (HazMat). A055

Use only actual passenger and baggage weights (no combinations of  average and actual A096
weights) for all its aircraft
Conduct IFR en route operations. B032
Conduct terminal instrument operations using specific procedures and landing minima C051

for airplanes. Conduct operations using basic instrument approach procedures for airplanes. C052 Conduct straight-in Category I approach procedures other than ILS, MLS, or GLS with C053
specific IFR landing minimums for airplanes at all airports. Derive alternate airport weather minimums from the standard table for airplanes. C055 Use IFR Takeoff Minimums, 14 CFR Part 135 Airplane Operations - All Airports. C057 Conduct nonscheduled passenger and/or all-cargo, special terminal area IFR airplane C064
operations in Class G airspace and at airports without an operating control tower.
Conduct airplane Category I, ILS, MLS, or GLS approach procedures with specific IFR C074 landing minimums. Conduct airplane IFR circle-to-land approach maneuvers. C075 Use an approved aircraft inspection program (AAIP). D073

U.S. Department of Transportation
Federal Aviation Operations Specifications Administration
Reference Paragraphs
Use an approved minimum equipment list (MEL). D095
Use aircraft with nine or less passenger seats with the additional maintenance D101 requirements of 14 CFR Section 135.421 applicable for aircraft engine, propeller, and propeller control (governor).
Use aircraft with nine or less passenger seats with the additional maintenance D104 requirements of 14 CFR Section 135.421 applicable for emergency equipment.
Use weight and balance control procedures. E096