- API Spec 16A - Specification for Drill-through Equipment
- API Spec 16C - Specification for Choke and Kill Systems
- API Spec 16D - Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment
- API Spec 16F - Specification for Marine Drilling Riser Equipment
- API RP 16Q - Recommended Practice for Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems
- API Spec 16R - Specification for Marine Drilling Riser Couplings
- API Spec 16RCD - Specification for Drill Through Equipment-Rotating Control Devices
