Regulations last checked for updates: Feb 11, 2026

Title 43 - Public Lands: Interior last revised: Dec 18, 2025
§ 3252.13 - How long may I collect information from my temperature gradient well?

You may collect information from your temperature gradient well for as long as your permit allows.

source: 72 FR 24400, May 2, 2007, unless otherwise noted.
cite as: 43 CFR 3252.13