CFR > Title 18 > Chapter I > Subchapter P > Part 347 18 CFR Part 347 – Oil Pipeline Depreciation Studies Current as of: 2024 | Check for updates | Other versions § 347.1 Material to support request for newly established or changed property account depreciation studies Ask a business law question, get an answer ASAP!Thousands of highly rated, verified business lawyers.Click here to chat with a lawyer about your rights.