LawStack's complete Title 40 Code of Federal Regulations (CFR), Protection of Environment. Leave the heavy books at home and buy this app now.

This includes federal regulations administered by the Environmental Protection Agency (EPA).

• Free trial. Renew thereafter via in-app purchase.
• Complete offline access.
• All tables and images included.
• Add custom bookmarks, highlighting, and notes.
• Full-text search and other advanced search options.
• Email and share sections or selected content with colleagues.

Question, comments, or feature requests? Need specific updates? Email us at


Disclaimer: The information in this app is not intended to replace official versions, is subject to revision, and should not be considered legal advice. Tekk Innovations LLC presents this information without warranties, express or implied, regarding accuracy, timeliness, or completeness. In addition, this disclaimer may change at anytime. When necessary, consult primary source material.

What's New

Version 8.605.20170723

Free trial for new users.

Customer Reviews

Quite useful, but needs text highlighting!


4 stars with the ability to highlight blocks of text, 5 for offering multiple highlight colors. I work in the hazardous waste industry, and the ability to highlight text would be a boon to my training presentations. Also, the ability to add annotations, and edit your bookmarks by changing the order in which they are listed by dragging them to a new location in the list. When I return to a chapter and add a bookmark, it currently appears at the bottom of the list. I want to drag it into chapter order.

Great App


As an environmental engineer, I deal with the federal regulations on nearly a daily basis and this App is very useful and user friendly way to quickly check out the regs. I also like the search function. I highly recommend it if you deal a lot with the CFR.

Great app!


Perfect for anyone who uses the CFR on a regular or occasional basis. The search function is great and the ability to email citations makes this even better.

Love that I don't have to be connected for it to work and that it is updated with reg changes.


Tekk Innovations LLC
405.4 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2009 - 2016 Tekk Innovations LLC
In-App Purchases
  1. 40 CFR - 1 Year $29.99
  2. 40 CFR - 3 Months $9.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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