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505-827-9329 (24 hrs)
New Mexico
Environment Department
Petroleum Storage Tank Bureau

PST Regulations, Current and Proposed

New Petroleum Storage Tank regulations are in effect

The Petroleum Storage Tank Bureau is advising you of the following changes:

Effective date was December 27, 2018

The current part 123, Corrective Action Fund Administration, became effective December 27, 2018 (see near bottom of page).

Effective date was December 21, 2018

Sections 7, 10, 1203, 1210, 3102, 3105 through 3109, 3112, 3114, 4101,4103 through 4106, 4108, 4109, 4114, 5002 through 5006, 5101, 5102, 5202, 5206, and 5209 of 20.6.2 NMAC were amended effective December 21, 2018. Note in particular that some of the ground water quality standards have changed. Please refer to http://164.64.110.134/nmac/nmregister/xxix/20.6.2amend.html for the changes and the new regulation.

Effective date was July 24, 2018

The Petroleum Storage Tank Regulations, 20.5 NMAC (except part 123-formerly part 17), that were adopted by the Environmental Improvement Board on 5/25/2018 are published and effective as of July 24, 2018.

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  • You may download and print your own copy of the revised regulations or any linked document below. They are in pdf format. If your computer asks you to choose a program to read the file, choose Adobe Acrobat
  • Questions on the regulation changes may be emailed to pst.regulations@state.nm.us and may be used for FAQs (frequently asked questions) on the PSTB website or elsewhere. Identifying information will be removed before the question is used.  

** CORRECTION – If you downloaded or received the summary before 8/22, please download again. Grace period starting in 2019 is 15 days (p.2).**

*CORRECTED 8/22*2018 20.5 NMAC Summary of Major Changes

*SPANISH version of summary*Resumen de Los Principales Cambios en la Regulación de Tanques de Almacenamiento de Petróleo

*NEW*Outreach Presentation Overview

*NEW*UST Outreach Presentation
*NEW*AST Outreach Presentation
*NEW*Part 114 Outreach Presentation

*NEW*Part 115 Outreach Presentation

*NEW*Part 118 Outreach Presentation

*NEW*Part 119-122 Outreach Presentation

Crosswalk of 20.5 NMAC (2012) and 20.5 NMAC (2018) Petroleum Storage Tank Regulations

20.5.101 NMAC (formerly 20.5.1), General Provisions

20.5.102 NMAC (formerly 20.5.2), Registration of Tanks

20.5.103 NMAC (formerly 20.5.3), Annual Fee

20.5.104 NMAC (formerly 20.5.18), Operator Training

20.5.105 NMAC (formerly 20.5.14), Certification of Tank Installers and Junior Installers; Requirements for Testers

20.5.106 NMAC (formerly 20.5.4), New and Upgraded Underground Storage Tank Systems: Design, Construction, and Installation

20.5.107 NMAC (formerly 20.5.5), General Operating Requirements for Underground Storage Tank Systems

20.5.108 NMAC (formerly 20.5.6), Release Detection for Underground Storage Tank Systems

20.5.109 NMAC (formerly 20.5.4), New and Upgraded Above Ground Storage Tank Systems: Design, Construction, and Installation

20.5.110 NMAC (formerly 20.5.5), General Operating Requirements for Above Ground Storage Tank Systems

20.5.111 NMAC (formerly 20.5.6), Release Detection for Above Ground Storage Tank Systems

20.5.112 NMAC (formerly 20.5.4), Above Ground Storage Tank Emergency Generator Systems

20.5.113 NMAC (formerly 20.5.4), Underground Storage Tank Emergency Generator Systems

20.5.114 NMAC (no former part), Airport Hydrant Fuel Distribution Systems, UST Systems with Field-Constructed Tanks, and Hybrid Storage Tank Systems

20.5.115 NMAC (formerly 20.5.8), Out-of-Service Storage Tank Systems and Closure

20.5.116 NMAC (formerly 20.5.19), Delivery Prohibition

20.5.117 NMAC (formerly 20.5.9), Financial Responsibility

20.5.118 NMAC (formerly 20.5.7), Reporting and Investigation of Suspected and Confirmed Releases

20.5.119 NMAC (formerly 20.5.12), Corrective Action for Storage Tank Systems Containing Petroleum Products

20.5.120 NMAC (formerly 20.5.13), Corrective Action for UST Systems Containing Other Regulated Substances

20.5.121 NMAC (formerly 20.5.15), Corrective Action Fund Use and Expenditures

20.5.122 NMAC (formerly 20.5.16), Qualification of Persons Performing Corrective Action

*NEW*20.5.123 NMAC (formerly 20.5.17), Corrective Action Fund AdministrationThis part was adopted by the Secretary of NMED on November 19, 2018 and became effective December 27, 2018.

20.5.124 NMAC (formerly 20.5.11), Lender Liability

20.5.125 NMAC (formerly 20.5.10), Administrative Review

Additional information on changes to part 123 of the Petroleum Storage Tank regulations that took effect 12/27/2018

Notice of Adoption of Final Rule

Aviso de Adopción de la Norma Final

20.5.123 NMAC, Corrective Action Fund Administration, proposed changes, redline strikeout (this was the version proposed to the Secretary of NMED)

Presentation given at stakeholders’ meeting on proposed changes to 20.5.123 NMAC

Part 123 was renumbered from part 17 using an emergency rulemaking procedure. The notice of this action is here

For non-discrimination information, click here.

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