About this app
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 support@lawstack.com. ************************************ 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.
Latest release
What’s New
This update from Apple will improve the functionality of this app. No new features are included. Free trial for new users.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
- First observed Aug 12, 2026 · 6:20 PM Free
Screenshots
