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API Monogram & APIQR Program Documents

Below is the full list of API specifications and standards for which Licenses are available, with downloadable Licensing Information Forms.  These forms provide the specific products that can be licensed and will help your organization determine the best scope for your API Monogram License.

This product information can be added or changed in your online applications – both New and Renewals. Submit a Licensing Information Form only when requesting a change to the scope of your current license between Renewal applications. Send completed forms to

The API Monogram mark on products is a warranty by API Monogram licensees to API and purchasers that the marked products comply in every aspect with the applicable API Specification/Standard in effect at the time of manufacture.

Monogram Licenses & Licensing Information Forms

API 2B - Fabrication of Structural Steel Pipe
Steel Pipe

API 2C - Offshore Pedestal-Mounted Cranes
Offshore Cranes

API 2F - Mooring Chain
Flash Welded Chain; Forged Connecting Links

API 2H - Carbon Manganese Steel Plate for Offshore Structures
Grade 42 Steel Plate; Grade 50 Steel Plate;

API 2MT1 - Carbon Manganese Steel Plate with Improved Toughness for Offshore Structures
Steel Plate, Grade 2MT1

API 2W - Steel Plates for Offshore Structures, Produced by Thermo-Mechanical Control Processing (TMCP)
Grade 50 Steel Plate; Grade 60 Steel Plate; Grade 70 Steel Plate; Grade 80 Steel Plate

API 2Y - Steel Plates, Quenched-and-Tempered, for Offshore Structures
Grade 50 Steel Plate; Grade 60 Steel Plate

API 4F - Drilling and Well Servicing Structures
Derricks; Masts; Crown Block Assemblies; Substructures

API 5B - Threading, Gauging, and Thread Inspection of Casing, Tubing and Line Pipe Threads
Thread Gauges

API 5CRA - Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock
Manufacturer of Casing, Tubing or Coupling Stock at PSL 1; Manufacturer of Casing, Tubing or Coupling Stock at PSL 2, at Groups 1, 2, 3, 4

API 5CT - Casing and Tubing
Manufacturer of Casing or Tubing Plain End; Manufacturer of Casing or Tubing Threaded and Coupled; Manufacturer of Casing or Tubing Pup Joints; Manufacturer of Casing or Tubing Couplings; Manufacturer of Accessories; Processor of Casing or Tubing Plain End; Processor of Casing or Tubing Threaded and Coupled; Threader, at Groups 1, 2, 3, 4

API 5DP - Drill Pipe
Drill Pipe Body; Tool Joints; Drill Pipe (Assembly)

API 5L - Line Pipe
Manufacturer of Line Pipe - Plain End at PSL 1; Manufacturer of Line Pipe - Plain End at PSL 2; Manufacturer of Line Pipe - Threaded and Coupled; Manufacturer of Line Pipe Couplings; Processor of Line Pipe - Plain End at PSL 1; Processor of Line Pipe - Plain End at PSL 2; Processor of Line Pipe - Threaded and Coupled; Threader

API 5LC - CRA Line Pipe
Manufacturer of Alloy Pipe; Processor of Alloy Pipe

API 5LCP - Coiled Line Pipe
Coiled Line Pipe

API 5LD - CRA Clad or Lined Steel Pipe
Manufacturer of Clad Steel Pipe; Manufacturer of Lined Steel Pipe; Processor of Clad Steel Pipe; Processor of Lined Steel Pipe

API 5ST - Coiled Tubing
Manufacturer of Coiled Tubing

API 6A - Wellhead and Christmas Tree Equipment
Manufacturer of Casing and Tubing Heads; Cross-Over Connectors; Tubing Head Adapters; Top Connectors; Tees and Crosses; Fluid-Sampling Devices; Adapter and Spacer Spools; Casing and Tubing Hangers; Valves; Chokes; Surface and Underwater Safety Valves; Surface and Underwater Safety Valve Actuators; Back Pressure Valves; Blind and Test Flanges; Threaded Connectors; Other End Connectors; Bullplugs; Valve Removal Plugs; Actuators; Ring Gaskets at PSL 1 - 4

API 6D - Pipeline and Piping Valves
Steel Gate Valves; Plug Valves; Ball Valves; Check Valves

API 6DSS - Subsea Pipeline Valves
Subsea Gate Valves; Subsea Plug Valves; Subsea Ball Valves; Subsea Check Valves

API 7-1 - Rotary Drill Stem Elements
Kelly Valves; Kellys; Drill Stem Subs; Drill Collars; Heavy Weight Drill Pipe; Roller Bits; Blade Drag Bits; Diamond Bits; PDC Bits; Threading for Rotary Shouldered Connections; Stabilizers

API 7-2 - Threading and Gauging of Rotary Shouldered Connections
Rotary Shouldered Connection Gauges

API 7F - Oil Field Chain and Sprockets
Roller Chain

API 7K - Drilling and Well Servicing Equipment
Rotary Tables, Rotary Bushings, Rotary Slips, Piston Mud Pump Components, Drawworks Components, Spiders, Manual Tongs, Safety Clamps Not used as Hoisting Devices, BOP Handling Systems, Pressure Relieving Devices for High-Pressure Drilling Fluid Circulating Systems, Snub-Lines for Manual and Power Tongs, Slip Bowls, High Pressure Mud and Cement Hoses at FSL 0, 1, and 2

API 8C - Drilling and Production Hoisting Equipment (PSL 1 and PSL 2)
Hoisting Sheaves, Traveling Blocks and/or Hook Blocks; Block-to-Hook Adapters, Connectors and Link Adapters, Drilling Hooks, Tubing and Sucker Rod Hooks; Elevator Links, Casing, Tubing and Drill Pipe Elevators, Sucker Rod Elevators; Rotary Swivel Bail Adapters, Rotary Swivels; Power Swivels, Power Subs; Spiders (if capable of being used as elevators), Wireline Anchors; Drill-String Motion Compensators; Kelly Spinners (if capable of being used as hoisting equipment); Pressure Vessels and Piping Mounted onto Hoisting Equipment; Safety Clamps (if capable of being used as hoisting equipment); Guide Dollies for Traveling Equipment at PSL 1 and 2

API 9A - Wire Rope
Bright or Drawn-Galvanized Wire Rope; Mooring Wire Rope; Torpedo Lines; Well-Measuring Wire; Well-Measuring Strand; Wire Guy Strand; Structural Rope and Strand

API 10A - Cements and Materials for Well Cementing
API Well Cement Class A, Type [O]; Class B, Type [MSR, HSR]; Class C, Type [O, MSR, HSR]; Class D, Type [MSR, HSR]; Class G, Type [MSR, HSR]; Class H, Type [MSR, HSR]

API 11AX - Subsurface Sucker Rod Pump Assemblies, Components, and Fittings
Pump and Pump Parts; Pump Parts without Tubing or Sucker Rod Threads; Seating Cups

API 11B - Sucker Rods, Polished Rods and Liners, Couplings, Sinker Bars, Polished Rod Clamps, Stuffing Boxes, and Pumping Tees
Steel Sucker Rods; FRP Sucker Rods; Couplings, Subcouplings and Polished Rod Connections; Polished Rods; Polished Rod Clamps; Stuffing Box and Pumping Tees; Sinker Bars; Threads; Thread Gages

API 11D1 - Packers and Bridge Plugs
Downhole Equipment-Packers; Bridge Plugs

API 11E - Pumping Units
Pumping Unit Structure; Pumping Unit Gear Reducer

API 12B - Bolted Tanks for Storage of Production Liquids
Storage Tanks

API 12D - Field Welded Tanks for Storage of Production Liquids
Storage Tanks

API 12F - Shop Welded Tanks for Storage and Production Liquids
Storage Tanks

API 12J - Oil and Gas Separators

API 12K - Indirect Type Oilfield Heaters
Heaters; Shells; Coils

API 12L - Vertical and Horizontal Emulsion Treaters

API 12P - Fiberglass Reinforced Plastic Tanks
FRP Tanks

API 13A - Drilling-Fluid Materials
Barite; Barite 4,1 Hematite; Bentonite; Nontreated Bentonite; Attapulgite; Sepiolite; CMC-LVT; CMC-HVT; Starch; OCMA Grade Bentonite; PAC-LV; PAC-HV; Drilling-Grade Xanthan Gum

API 14A - Subsurface Safety Valve Equipment
Subsurface Safety Valves

API 14L - Lock Mandrels and Landing Nipples
Lock Mandrels; Landing Nipples

API 15HR - High Pressure Fiberglass Line Pipe
Line Pipe; Couplings; Fittings; Flanges; Reducers and Adapters

API 15LE - Polyethylene Line Pipe (PE)
Line Pipe; Fittings

API 15LR - Low Pressure Fiberglass Line Pipe
CC Line Pipe; FW Line Pipe

API 15S - Spoolable Reinforced Plastic Line Pipe
Non-metallic Reinforced Pipe, End Fittings, Coupling Fittings

API 16A - Drill-Through Equipment
Ram BOP; Ram Blocks, Packers, and/or Top Seals; Annular BOP; Annular Packing Units; Hydraulic Connectors; Drilling Spools; Adapters; Hub and Clamp End Connectors

API 16C - Choke and Kill Equipment
Choke and Kill Manifold Buffer Chamber; Drilling Choke Actuators; Drilling Choke Controls; Drilling Chokes; Rigid Choke and Kill Lines; Flexible Choke and Kill Lines at FSL 0, FSL 1, FSL 2 and/or FSL 3

API 16D - Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment
Control Systems for Surface Mounted BOP Stacks; Hydraulic Control Systems for Subsea BOP Stacks; Electro-Hydraulic/Multiplex Control Systems for Subsea BOP Stacks; Diverter Control Systems; Emergency Backup BOP Control Systems; Auxiliary Equipment Control Systems and Interfaces

API 16F - Marine Drilling Riser Equipment
Riser Tensioner Equipment; Flex/Ball Joints; Telescopic Joint (Slip Joint) and Tensioner Ring; Riser Joints; Buoyancy Equipment (syntactic foam modules only); Riser Running Equipment; Lower Riser Adapter

API 16RCD - Rotating Control Devices
Drill through Equipment; RCD Packers

API 17D - Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment
Subsea Tree Equipment, Subsea Wellhead Equipment, Mudline Suspension System Equipment, Other Equipment at PSL 2, 3, 3G

API 17J - Unbonded Flexible Pipe
Unbonded Flexible Pipe

API 17K - Bonded Flexible Pipe
Bonded Flexible Pipe

API 19AC - Completion Accessories
Pressure Containing and Non-Pressure Containing Completion Accessories

API 19G1 - Side-Pocket Mandrels
Side-pocket Mandrels

API 19G2 - Flow-Control Devices for Side-Pocket Mandrels
GROUP I: Injection Pressure Operated; Balanced Injection Pressure Operated; Injection Pressure Operated w/ choke. GROUP II: Production Pressure Operated; Production Pressure Operated w/ choke. GROUP III: Pilot: Differential. GROUP IV: Orifice; Nozzle venture; Shear orifice; Dump/kill. GROUP V: Dummy. GROUP VI: Chemical injection; Chemical injection, spring loaded. GROUP VII: Surface-controlled hydraulic; Surface-controlled electric; Smart. GROUPVIII: Liquid injection. GROUP IV: Measure pressure; Measure temperature; Monitor corrosion; Connect to other devices; Provide control logic

API 19G3 - Running Tools, Pulling Tools and Kick-Over Tools and Latches for Side-Pocket Mandrels
Running and Pulling Tools; Kick-over Tools; Latches

API 19V - Subsurface Barrier Valves and Related Equipment
Type A, B, C, AA, BB and CC Barrier Valves; Barrier Valve Tools

API 20A - Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry
Carbon Steels; Low Alloy Steels; Stainless Steels Other Than Duplex; Duplex Stainless Steels; Nickel Base Alloys (CRA)

API 20B - Open Die Shaped Forgings for Use in the Petroleum and Natural Gas Industry
Carbon and Microalloyed Steels; Low Alloy Steels; Austenitic, Martensitic and Martensitic Precipitation Hardening Stainless Steels; Duplex and Superduplex Stainless Steels; Nickel Based Alloys

API 20C - Closed Die Forgings for Use in the Petroleum and Natural Gas Industry
Carbon and Low-Alloy Carbon Steels; Austenitic, Martensitic and PH Martensitic Stainless Steels; Corrosion-Resistant Alloys

API 20E - Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries
Cold Formed Bolts, Screws, and Nuts; Studs; Fully Machined Bolts, Screws, and Nuts; Hot Formed Bolts and Screws; Hot formed nuts

API 20F - Corrosion Resistant Bolting for Use in the Petroleum and Natural Gas Industries
Machined Studs; Machined Bolts, Screws, and Nuts; Cold Formed Bolts, Screws, and Nuts; Hot Formed Bolts and Screws; Roll Threaded Studs, Bolts, and Screws; Hot Formed Nuts

API 547 - General-Purpose Form-Wound Squirrel Cage Induction Motors-250 Horsepower and Larger

API 594 - Check Valves: Flanged, Lug, Wafer, and Butt-Welding
Check Valves, Type A & B

API 600 - Steel Gate Valves-Flanged and Butt-Welding Ends, Bolted Bonnets
Bolted Bonnet Steel Gate Valves

API 602 - Gate, Globe, and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries
Compact Steel Gate Valves, Globe Valves; Valves

API 603 - Corrosion-Resistant, Bolted Bonnet Gate Valves—Flanged and Butt-Welding Ends
Corrosion-Resistant Bolted Bonnet Gate Valves

API 608 - Metal Ball Valves-Flanged, Threaded, and Welding Ends
Metal Ball Valves

API 609 - Butterfly Valves: Double-Flanged, Lug- and Wafer-Type
Butterfly Valves – Categories A & B

API 650 - Welded Tanks for Oil Storage
Fabricated Steel Plates: Shop Built Tanks

Monogram Licensing Information Forms Use when requesting a change to the scope of your Monogram License

API Monogram Licensing Program Requirements Includes usage of the Monogram Mark

APIQR Registration Program Requirements Includes usage of the APIQR Marks

Excel Icon API Spec Q1 Conformity Matrix

Excel Icon API Spec Q2 Conformity Matrix

Audit Response Instructions Reference document for responding to audit nonconformities | Chinese | Russian

API Monogram Program Alternative Marking of Products License Agreement (AMA)

Monogram/APIQR Impartiality Policy

How to Become a Monogram Licensee

API Composite List Find companies and products that have API Monogram Licenses and API Certifications of Registration

API myCerts Create an account and apply for certification; Track current certifications and audits