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API Monogram Program & APIQR

API is committed to maintaining the highest level of confidence in its certification and/or licensing activities by providing impartial and objective assessments of its client’s management systems. This commitment is supported by processes that manage conflicts of interest, ensure personnel competence, maintain confidentiality of information while promoting openness, and enable communication with all stakeholders.


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What does the API Monogram Mean to the Oil and Gas Industry?


What is the API Monogram Program?

The API Monogram Program is a voluntary licensing program designed to facilitate the consistent manufacturing of product that conforms to API standards. The program requires that manufacturers maintain the capabilities, including the resources, processes and technology, to manufacture products that fall within the scope of licensing. The program gives licensed manufacturers an opportunity to mark conforming product so that it is easily recognizable and identifiable in the field.  The Licensee must implement, maintain and continually improve their quality management system to meet the oil and gas industry’s quality management system specification, API Spec Q1. The API Monogram Licenses are only issued after an on-site audit has verified that the facility meets the program requirements. Licensees are required to maintain continued management system conformity to API Spec Q1 as well as the product standard and program requirements. In order for a license to remain active, the licensee must go through a renewal audit after each 3 year period.  All licensees, licensing information and licensing statuses are identified on the API Composite List, an on-line directory. The program requirements and obligations, including use of the mark, reporting on nonconforming equipment, QMS conformity with API Spec Q1, and product conformity with the specification, are enforced through a legally binding agreement between API and the Licensee.

What is the API Monogram Mark?

The API Monogram is an API registered certification mark.  Through the API Monogram Program, licensed manufacturers are given the authority to apply the mark to equipment that meets API product specification requirements and has been manufactured within a quality management system that meets API Spec Q1.

API has established specific requirements for control and use of the mark.  Licensees are required to document, implement and maintain Monogram Mark controls based on the requirements. The rights and authorities to use the mark are facility and location specific and can only be applied to new products in conjunction with the facility’s license number and the date of manufacture. Use of the Monogram and license number on conforming product provides traceability back to the original manufacturer of the product and the original design and manufacturing specifications.

What does the API Monogram mean?

The use of the API Monogram on product constitutes a representation and warranty by the licensed manufacturer that, on the date of manufacture, the product conforms to all applicable, current editions of specifications, standards and requirements of API.

To API

  • The Monogram Mark is a protected trademark
  • Legally enforceable program requirements through contract agreements with the Licensees
  • The mark can only be applied to new, conforming product, manufactured by the Licensed organization at the Licensed facility
  • Industry initiative that supports its commitment to improve safety and reliability of oil and gas industry equipment and operations

To Manufacturers

  • A way to be recognized by API and industry for product quality
  • Recognition of their capability to manufacture products that meet API specifications
  • A means to physically mark and identify conforming product(s)

To Equipment Purchasers and End-Users

  • Verification that the products meet the requirements of the API specifications and standards
  • Manufacturers have implemented a management system that provides assurances that processes have been implemented to provide consistent, conforming products
  • Manufacturers have implemented processes and controls to identify and address customer requirements, customer complaints and product issues
  • A method to trace products back to the original manufacturer, design and performance requirements
  • A means to report industry product and process issues and nonconformities
  • Visible identification in the field that a product was manufactured to conform to an API product specification or standard

Use of the API Monogram Mark

Use of APIQR Marks

Monogram/APIQR Impartiality Policy

Advisory #1: API Procedures Concerning Communications with Third Parties, dated June 2, 2016. Mandarin (中文)

Advisory #3: Management Representative, dated April 13, 2016. Mandarin (中文)

Advisory #6: Design and Development Exclusion, dated April 28, 2016.

Advisory #7: Licensee, Certified Organization and Applicant Code of Conduct, dated April 13, 2016. Mandarin (中文)

Advisory #8: Implementation of QMS by Licensee.  WITHDRAWN June 2016.  Please see API Spec Q1, Section 4.1.1 and API Spec Q1, Annex A, Section A.4 for the specific requirements to implement and maintain a quality management system that meets API Spec Q1.

Below are the most recent updates to the API Monogram and APIQR programs.  Please click on one of the links to read the full update.

If you would like to view all of the current addenda and errata, please click here.

Withdrawal of API Monogram/APIQR Advisory 8, Implementation of QMS by Licensee

APIQR ISO 9001:2015/ISO 14001:2015 Transition Process Update & FAQ

API Spec 6A, 20th Edition, Errata 8

API Spec 15HR, 4th Edition

API Spec 12P, 4th Edition

API Spec 16C, 2nd Edition, Errata 3

API Standard 650, 12th Edition, Addendum 2

NEW! API Spec Q1 and API Spec Q2 Auditor Certification Program

API Specification 16C, 2nd Edition, Errata 2

API Standard 20C, 2nd Edition

APIQR ISO 14001.2015 Transition Process

APIQR ISO 9001.2015 Transition Process

API Spec 17D, 2nd Edition, Errata 7

API Spec 5LC, 4th Edition, Errata

API Spec 17D, 2nd Edition, Addendum

API Spec 6D, 24th Edition, Errata 6

API Spec 20A, 1st Edition, Errata 1

API Standard 602, 10th Edition

API Spec 17D, 2nd Edition, Errata 6

API Spec 16RCD, 2nd Edition

API Spec 16C, 2nd Edition, Errata

API Spec 14A, 12th Edition, Errata

API Spec 13A, 18th Edition, Errata 3

API Spec 11E, 19th Edition, Errata

API Spec 6D, 24th Edition, Errata 5

API Spec 11AX, 13th Edition

API Audit Handout , July 28, 2015

New ANAB Logo for APIQR ISO 9001 and 14001 Accredited Certificates

Updates to API Monogram-APIQR Advisory 7; February 23, 2015

API Spec 20A, 1st Edition, Addendum 2

API Spec 5L, 45th Edition, Errata 1

API Spec 11D1, 3rd Edition

API Spec 16C, 2nd Edition

API Spec 6D, Addendum 1

API Spec 6D, Errata 3

API Spec 5LC, 4th Edition

API Spec 5LD, 4th Edition

API Spec 14A, Twelfth Edition

API Standard 600, Thirteenth Edition

API Spec 6D, Errata 2

API Spec 19G1, Errata December, 2014

API Standard 650, Errata 2

API Spec 6A, Errata 7

API Spec 16F, Addendum 2

API Spec 12B, Sixteenth Edition

API Spec 20E, Errata October 2014

API Spec 6D, Errata 1

API Standard 650, Addendum 1

API Spec 16F, Addendum 1

API Spec 13A, Errata 1

API Spec 6D, 24th Edition

API Spec 20C, Addendum 1

API Spec 8C, Errata May, 2014

API Spec 17J, 4th Edition

API Spec Q1 9th Edition, Errata 2

API Spec 6A, Errata 6

API Spec 16RCD - Withdrawal of Other End Connectors and RCD Clamps

ISO/TS 29001:2010, Withdrawal from APIQR

API Spec 17F, Withdrawal

API Spec 16C, Withdrawal of Union Connections

API Spec 20B, Errata December, 2013.

Withdrawal of API Monogram Guest Host Licenses

API Spec 17D, Errata 4

API Spec 6A, Errata 4

API Spec 7F, Errata 2

API Spec 4F, 4th Edition

API Spec 6A, 3rd Addendum

API Standard 650, 12th Edition

API Spec Q1 9th Edition Transition Plan

API Standard 603, 8th Edition

API Standard 599, 7th Edition

API Spec 5L, 45th Edition

API Spec 6A, 2nd Addendum

API Spec 6D, 3rd Addendum

API Spec 11AX, 2nd Addendum

Withdrawal of API Spec 6H

API Spec 7K, 5th Edition, Marking of Drawworks Assembly Interpretation

Withdrawal of API Spec 8A

API Spec 2C, 7th Edition

Withdrawal of API Spec 11IW

API Spec 8C, 5th Edition

Guest-Host Program Change Announcement

API Spec 17D, 2nd Edition: Valve and Actuator Design Validation Testing Requirements

API Spec 17D, 2nd Edition: Section 5.l.3.5 Interpretation

API Spec 5CT Allowance of 8th Edition 7.656" Coupling OD Size

API Spec 5CT, 9th Edition

API Spec 9A, 26th Edition

Disputing the Validity of an Individual Nonconformity

If a client wishes to dispute the validity of an individual nonconformity before API makes a certification decision, the client should dispute the nonconformity when submitting their corrective actions using API's MyCerts website. The client should provide an explanation of why the nonconformity is not valid along with evidence to support their conformance to the applicable requirement(s).

Appealing Licensing and/or Certification Decisions

Clients may appeal API licensing and certification decisions. Appeals must be signed and submitted in writing to the:

Manager of Operations

APIQR and API Monogram Program

American Petroleum Institute

1220 L Street NW

Washington, DC 20005

All appeals must be submitted within 30 days of the certification decision date and include the following:

  • An explanation of the issue in dispute;
  • The specific reason why the client believes the decision was in error, with evidence to support the client's claim and;
  • The specific outcome the client is seeking.

Clients should provide specific factual evidence to support their appeal.  This evidence should indicate why API’s decision was in error or otherwise went against the intent of the API specifications and standards and/or the other program requirements.  

Providing a root cause and reasons why an organization’s Quality Management System was not maintained and /or why the client’s organization failed to meet program requirements is not grounds for an appeal.

Clients must pay a $1000 US Dollar filing fee.  Clients will be invoiced for this amount when the appeals letter is received.  The fee shall be returned if the matter is resolved prior to an appeals hearing;

Following its procedure for appeals, for those appeals which API determines to merit independent review, API will convene an independent Appeals Board to review the appeal and give all parties involved the opportunity to be heard. The decision of the Appeals Board will be communicated in writing to API and to the appellant.

Complaints - certification@api.org

API appreciates customer feedback, including complaints. We consider complaints as one way to improve our processes. Complaints against API or its clients may be transmitted to any API employee by letter, email, fax, phone or in person. API personnel will attempt to resolve the issue upon receipt. If the complaint requires further investigation, API will initiate its corrective action process to address the complaint.

Nonconformance Report (NCR) - http://ncr.api.org/ncr.aspx

When purchasers and users find API licensed or certified suppliers not in conformity with the applicable product or management system standards, API wants to know. This website is designed to allow purchasers to report; 1) suppliers of nonconforming product and services; and / or 2) suppliers that are failing to meet quality management system or other program requirements.

API Payment Policy

  1. Applications will not be processed until payment is received and applied.
  2. All payments need to be made in United States currency and checks drawn from a U.S. bank. Applicants are responsible for all taxes, banking and other service fees, including all applicable withholding taxes.
  3. Please include invoice number with all payments
  4. Mail checks to: API, P.O. Box 1425, Merrifield, VA 22116-1425 USA
  5. Send checks by courier services to: API, Attn: John Robertson, 1220 L Street NW, Washington, D.C. 20005-4070 USA
  6. When paying by electronic/wire transfer:
    • Applicants are responsible for all electronic transfer and banking fees.
    • Add a $50.00 USD handling fee for electronic payments not drawn on a U.S. bank.
    • Reference the invoice number found in your online application.
    • Send funds to:  TD Bank, 1030 15th St NW, Washington, DC 20005 USA  /  ABA Routing # 054001725 (ACH)  /  ABA Routing # 031101266 (Wire) Credit to American Petroleum Institute, Account # 4251303172, SWIFT: NRTHUS33

The API Purchasing Guidelines contain the purchasing suggestions and data sheets for the API product and service standards covered by the API Monogram Program.* Moreover, they have been reformatted to look consistent and to ask that all-important question, “Does it have an API Monogram?” The API Monogram is the Licensee’s warranty to API and the buyer that the product meets the API product standard in every detail. What better way to ensure that your purchasing requirements meet the minimum requirements recommended by the API subcommittees that control the product specifications, than to follow the purchasing guidelines they have agreed to include in the standard?

Full copies of API Standards and Specifications can be purchased through the online API Publications Store.

API Spec 2B Structural Steel Pipe

API Spec 2C Offshore Cranes 

API Spec 2H Carbon Manganese Steel Plate for Offshore Platform Tubular Joints 

API Spec 2MT1 As-Rolled Carbon Manganese Steel Plate with Improved Toughness for Offshore Structures

API Spec 2MT2 Rolled Shapes with Improved Notch Toughness

API Spec 2W Steel Plates for Offshore Structures Produced by Thermo-Mechanical Control Processing (TMCP)

API Spec 2Y Steel Plates, Quenched-and-Tempered, for Offshore Structures 

API Spec 4F Drilling and Well Servicing Structures 

API Spec 5CT Casing and Tubing

API Spec 5L Line Pipe 

API Spec 5LC CRA Line Pipe 

API Spec 6A Wellhead and Christmas Tree Equipment

API Spec 6AV1 Verification Test of Wellhead Surface Safety Valves and Underwater Safety Valves for Offshore Use 

API Spec 6DSS Subsea Pipeline Valves

API Spec 6D Pipeline and Piping Valves

API Spec 7-1 Rotary Drilling Equipment

API Spec 7-2 Threading and Gauging of Rotary Shouldered Thread Connections

API Spec 7F Oil Field Chain and Sprockets 

API Spec 8C Drilling and Production Hoisting Equipment 

API Spec 9A Wire Rope

API Spec 10D Bow-Spring Casing Centralizers

API Spec 11B Sucker Rods 

API Spec 11E Pumping Units

API Spec 12B Bolted Tanks for Storage of Production Liquids

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

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

API Spec 12J Oil and Gas Separators

API Spec 12K Indirect Type Oilfield Heaters

API Spec 12L Vertical and Horizontal Emulsion Treaters

API Spec 12P Fiberglass Reinforced Plastic Tanks

API Spec 13A Oil-Well Drilling-Fluid Materials

API Spec 14L Lock Mandrels and Landing Nipples

API Spec 15HR High Pressure Fiberglass Line Pipe 

API Spec 15LE Polyethylene Line Pipe (PE)

API Spec 15LR Low Pressure Fiberglass Line Pipe

API Spec 16A Drill Through Equipment 

API Spec 16D Control Systems for Drilling Well Control Equipment

API Spec 17D Subsea Wellhead and Christmas Tree Equipment 

API Spec 17J Unbonded Flexible Pipe 

API Spec 19V Subsurface Barrier Valves

API Spec 20B Open Die Shaped Forgings

API Spec 20E Alloy and Carbon Steel Bolting

API Spec 20F Corrosion Resistant Bolting

API Standard 547 General-Purpose Form-Wound Squirrel Cage Induction Motors 

API Standard 594 Check Valves

API Standard 600 Bolted Bonnet Steel Gate Valves 

API Standard 603 Corrosion-Resistant Bolted Bonnet Gate Valves

API Standard 608 Metal Ball Valves

API Standard 609 Butterfly Valves

*Please note that Purchasing Guidelines are not available for every standard included in the API Monogram Program.

Sales and Applications - sales@api.org

For future and current clients interested in adding API certification programs to their portfolio including Monogram, API Spec Q1, API Spec Q2, ISO 9001:2015, ISO 14001: 2015 and OSHAS 18001.

Worldwide Representatives - http://www.api.org/products-and-services/worldwide-representatives

For information about API programs and services, we welcome you to contact our local offices or contracted representatives in the countries or regions included on the linked page.  API operates from offices in Washington DC, Houston, Beijing, Singapore, Dubai and Rio de Janeiro.

General Client Information About Monogram and API Quality Registrar (APIQR) - certification@api.org

For current clients who have questions about their licenses, certifications, audit report reviews, and myCerts facility information.

Audit Department - audits@api.org

For current clients who have scheduling or auditor quesitons about their scheduled, ongoing, or future audits.

Billing - qualityfinance@api.org

For customers who have questions about an API invoice for their application, audit or annual fees.

Complaints - certification@api.org

API appreciates customer feedback, including complaints. We consider complaints as one way to improve our processes. Complaints against API or its clients may be transmitted to any API employee by letter, email, fax, phone or in person. API personnel will attempt to resolve the issue upon receipt. If the complaint requires further investigation, API will initiate its corrective action process to address the complaint.

Nonconformance Report (NCR) - http://ncr.api.org/ncr.aspx

When purchasers and users find API licensed or certified suppliers not in conformity with the applicable product or management system standards, API wants to know. This website is designed to allow purchasers to report; 1) suppliers of nonconforming product and services; and / or 2) suppliers that are failing to meet quality management system or other program requirements.