[Updated January 24, 2023] Final Expanded PHMSA Mega Rule: Your Guide to Compliance Through Cathodic Protection, Pipeline Mapping, and More.

If you work in natural gas, you’ve likely heard plenty about the PHMSA Gas Transmission Final Rule, aka the Mega Rule over the past decade. As new regulations begin to roll out, it’s key to assess how they’ll impact your operations and what steps you’ll need to take to be in compliance.

PHMSA Mega Rule presentation, Gas Transmission Final Rule
Experts from American Innovations, Bass Engineering and Cartopac answered attendees’ tough questions about PHMSA's Gas Transmission Final Rule during AI World this month in Austin, TX.

It’s called the “Mega” Rule for a reason. It is the most comprehensive and sweeping change in regulations the gas pipeline industry has seen since 49-CFR 192 was introduced. It’s so large, in fact, it had to be broken into three parts. Part One went into effect in 2020, focusing largely on material verification, expansion of assessments, and new record-keeping requirements. Part 2 was published on August 24 and has a known effective date of May 24, 2023. Part Three has moved forward and expanded 49-CFR 192.9 PHMSA’s jurisdiction of onshore gathering lines. Part 3 was entered into the Federal Register on November 15, 2021, with an effective date of May 16, 2023.

Virtual Brew 1/19/2023: PHMSA Mega Rule: Leverage the Right Technology to Ensure Compliance. Watch the Virtual Brew webinar about the PHMSA Mega Rule and how you can use technology to achieve compliance with this regulation.

Whether you’re catching up on the details or starting to research the next steps for your natural gas assets, check out our guide to complying with the PHMSA Mega Rule.

See PHMSA's Frequently Asked Questions (FAQs) on the Gas Transmission Final Rule

Becky Gibbs Murray's presentation on the Mega Rule for the Rocky Mountain Short Course on 1/20/2023 covered a brief history of the Mega Rule, how to leverage technology to achieve compliance and the many challenges associated with each part of this regulation.

PHMSA Mega Rule: A Brief History

PHMSA released its third and final rule to the public on August 4, 2022. It was formally published on August 24, 2022. This regulation is largely the product of negotiations with a diverse group of stakeholders, including industry, citizen groups, and industry trade groups. The bulk of the rule’s substantive requirements takes effect on May 24, 2023.

A few organizations have published information on what the expansion might mean.

We’ll start with an overview of Part Three because it is the most recent rule to go into effect. Part One is discussed next as it went into effect with some 2021 deadlines. Finally, we’ll discuss Part Two--- which has yet to become effective, but you should be aware of its content.

Mega Rule Part Three

Part Three focuses on PHMSA’s oversight reach. Previously their authority covered transmission and some 11,661 miles of onshore gathering pipeline, but this new regulation will extend coverage practically to the first valve off the production facility, bringing an estimated additional 426,000 miles of gas pipeline under PHMSA’s jurisdiction. Of this mileage, PHMSA estimates 90,863 miles will classify as Type C gathering, which qualifies for more stringent regulatory treatment.

Most pundits had originally expected Part Two to be effective in 2021 with Part Three finalized sometime in 2022. However, Part Three was published August 24, 2022, with an effective date of May 16, 2022.

According to the executive summary of the gas transmission final rule, the driver behind accelerating Part Three enforcement is due to new drilling technologies, surging gas production and a corresponding increase in volume transported by gathering lines.

PHMSA further noted that “Large diameter, high-pressure gathering lines are susceptible to the same types of integrity threats as transmission pipelines, including corrosion, excavation damage, and construction defects. The exemption of these pipelines from the safety requirements of the Federal Pipeline Safety Regulations failed to consider the present risks that now exist.”

Part Three puts a significant new reporting burden on operators with new guidelines for the classification of gathering lines and corresponding incident tracking and reporting requirements.

Mega Rule Part Three Key Dates

August 24, 2022Publication Date
November 16, 2022Identification of Type C lines
March 15, 20232022 Annual Report Due with new classifications
May 16, 2023Full compliance with 192.9

Achieving Part Three Compliance 

If you are new to PHMSA, reaching full compliance under Part Three can be overwhelming.

We can help start or expand your compliance program by leveraging our mobile data CartoPac Enterprise solution to digitize your entire pipeline system. We’ll map center lines and everything you need to be compliant.

With a comprehensive approach to identifying, assessing, providing expertise, hardware, and software, and providing mitigation and other hands-on services, American Innovations is here to help.

Mega Rule Part One

Part One of the Mega Rule covers a variety of new regulations, including Maximum Allowable Operating Pressure (MAOP) verification and the identification of new extended covered segments of pipelines called Moderate Consequence Areas (MCA). Here are three key points to ensure your gas pipeline is on its way toward compliance:

  • Pipeline Records: All material pipeline records must be traceable, verifiable, and complete.
  • MAOP Testing: Operators must confirm MAOP for qualifying pipelines, using a variety of methods. 50% of your pipeline’s MAOP must be confirmed in the first seven years of the ruling, so it’s crucial to track and document your progress. Depending on the documentation you already have, you may also need to run pressure tests and/or run lab tests on your pipe to ensure its material integrity.
  • Identifying MCA: Prior to the Mega Rule, pipeline operators were required to identify segments of their pipe that have higher consequences in the event of a failure. Part One expands this regulation to cover Moderate Consequence Areas. MCAs are areas that are not classified as HCAs but contain five or more people or dwellings intended for human occupation or congregation, including major roadways. Pipeline operators must comply with additional regulations for these areas like assessment and corrosion protection to mitigate hazards.

Part One Key Dates

The roll-out of Part One spans 15 years. Here are the key dates you should know:

July 1, 2020Rule went into effect
December 30, 2020​​Rule is officially enforced
July 1, 2021Companies need a plan in place to verify MAOP and identify MCAs
July 3, 202850% of MAOP verification must be complete
July 2, 2035100% of MAOP verification must be complete; must have plan in place to regularly assess MCAs

Part One requires a long-term, focused effort to achieve compliance by 2035 and beyond. The best path forward is to choose the right technology to manage the traceable, verifiable, and completeness of the records you’ll need to comply.

Mega Rule Part Two

Part Two of the Mega Rule focuses on improving pipeline integrity management best practices. While it is not yet in effect, you will need to plan ahead for what will most certainly be significant required changes to your integrity, operating, and compliance procedures:

  • Cathodic Protection: Gas pipeline operators must have an external corrosion management plan in place to limit the effect of electrical interference through surveying and assessment. They must then make efforts to mitigate this corrosion in a comprehensive manner alongside other test results.
  • Close Interval Surveying & Assessment: If any pipe to soil measurements indicate that cathodic protection is below appropriate levels, the pipeline operator must conduct close interval surveys approximately every five feet in the affected area and remediate any issues within 12 calendar months.
  • AC Interference Monitoring: Previously pipeline operators had to “consider” a recurring or continuous AC interference program to control and monitor accelerated corrosion due to power lines. Part Two now solidifies this request for “consideration” into a true requirement within 6 calendar months.
  • Internal Corrosion: Pipeline operators must establish a continuous program to monitor and mitigate internal corrosion. If they find that the pipeline is actively transporting corrosive gas, they must check the affected areas at least twice annually using coupons or other relevant methods.

Achieving Part Two Compliance for the Gas Transmission Final Rule

There are a number of moving parts and pieces in Part Two of the PHMSA Mega Rule that must be addressed by pipeline operators.

If you’re not sure where to start, we can help you review your operations and best practices for cathodic protection. With our expertise and Pipeline Compliance System (PCS) hardware and software solutions, you can easily update, document, and manage your records.

When it comes to internal corrosion, many pipeline operators have no current program in place. If you’re not sure what your program should look like, what factors you may need to consider, or how and when to monitor your pipeline, we can answer these questions and develop a tailor-made continuous program based our mobile data collection solution CartoPac Enterprise.

With PCS Field Integration, we can help you perform close interval surveys and gather data on your current cathodic protection needs. Then, we can help you and your team form a plan of action.

Looking for a comprehensive approach to pipeline management and compliance with the PHMSA Mega Rule? Contact us for a consultation.

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