Complete information. Confident decisions. Safer pipelines.

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Still Searching All Over for Pipeline Compliance Answers?

Research federal and state pipeline regulations, interpretations, enforcement actions, rulemakings, inspection materials, key compliance dates, and industry guidance in one searchable platform.
AIR Timeline

Are You Making Compliance Decisions with the Full Picture?

Access current, retrievable regulatory information to make repeatable, well-supported decisions with greater confidence.
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Do You Know Which Requirements Apply to Your Gathering Lines?

 Evergreen:AIR™ subscribers receive full access to the AGA/GPTC Natural Gas Gathering Lines Guidance. Individual copies are also available for purchase. 
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Does Your Compliance Platform Understand the Work You Do?

Experience matters when regulations are complex and the consequences are real. Our team brings decades of pipeline safety and compliance knowledge to help you research issues, understand requirements, and act with confidence.
Subscribe to Evergreen:AIR™ Start Your 14-Day Free Trial Request a Demonstration

See Evergreen:AIR™ in Action

Start with the full Evergreen:AIR™ demonstration, then watch short examples from the Have You Ever Needed Series showing common compliance research.

Evergreen:AIR™ Demonstration

PUBLIC ACCESS

Evergreen:AIR™ for All

Get a firsthand look at the public side of Evergreen:AIR™, including a public version of the Timeline. You can also access selected pipeline compliance references made available to everyone, including PHMSA materials, enforcement summaries, and inspection question sets. 

The Timeline Enforcement Summary
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Public Access

Timeline Preview

View the public version of the Evergreen:AIR™ Timeline, a chronological look at pipeline compliance activity, important dates, PHMSA notices, and rulemaking updates,

Enforcement Summary

Review PHMSA enforcement summary statistics by citation, year, case type, region, and pipeline part to identify common compliance issues and enforcement trends.

PHMSA Resources

Access public PHMSA resources, including FAQs, enforcement guidance, correspondence, reports, cooperative agreement maps, and selected rulemaking reference materials.

IA Question-Sets

Access editable PHMSA inspection question sets in Word format to support internal reviews, preparation, and compliance planning.

Resources

Regulatory Updates, Industry Trends, & Practical Insights
Rulemaking Redlines IA Question-set Redlines Important Compliance Dates Industry References Archived Data

Database

250,000+ Searchable Pages of Pipeline Compliance Data & Guidance
Enforcement Actions Current & Historical Rulemakings GPTC Gas Guidance PHMSA IA Question-sets Advanced Search Tools

Built by Pipeline Professionals

More Than a Platform, Experience You Can Rely On
An Industry-Engaged Team Long-Time AGA GPTC Committee Membership 75+ Years of Operator Experience Active Participation In GPAC, LPAC, & Industry Meetings National & International Conference Presenters

Evergreen:AIR™ Content by the Numbers

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Interpretations

from February 1970 to present

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Enforcement Actions

from January 2002 to present

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Special Permits

from January 1971 to present

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State Waivers

from July 1972 to present

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Notices / Advisory Bulletins

from 1994 to present

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Frequently Asked Questions

from September 2011 to present

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Enforcement Guidance Documents

from 2015 to present

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Failure Investigation Reports

from November 2003 to January 2019

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Pipeline Rulemakings

from 1968 to present

Simple, All-Inclusive Pricing

For far less than the cost of a small civil penalty, and the staff time required to respond to an allegation, you can access well over 250,000 pages of PHMSA data and guidance.

1–4 Subscriptions

$2,800
per seat per year

5 - 10 Subscriptions

$2,520
per seat per year
10% Discount

11+ Subscriptions

$2,380
per seat per year
15% Discount

Larger teams and agency personnel, contact us for custom pricing.

1–4 Subscriptions 5 - 10 Subscriptions 11+ Subscriptions

Refer. Review. Give Back.

Share your Evergreen:AIR™ experience or refer a colleague who could benefit from the platform. When your referral becomes a paid annual subscriber, Evergreen:AIR™ will make a $250 donation to the nonprofit organization of your choice. 

Meet the Team Behind Evergreen:AIR™

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Owner/Chief Executive Officer

Erin Mckay

Erin brings more than 25 years of pipeline and environmental compliance management experience in the energy industry. Her work has taken her across Alaska, from the North Slope to Valdez, Kenai, Cook Inlet, and many locations in between. She has facilitated hundreds of agency audits and provided compliance and risk-reduction support for more than $8 billion in energy assets, while helping operational teams strengthen regulatory performance.

Erin has served on the Gas Piping Technology Committee, GPTC, since 2009. She contributes to the Design and Planning/Emergency Response Task Group, the Operations and Maintenance/Operator Qualification Task Group, and the Transmission Division.