Govinfo (Provides one-stop access to U.S. Government legal, legislative, and regulatory information resources from 1994/1995-present).
Public Laws (Features text of newly enacted public laws after congressional passage and presidential signature). Public Law 114-183 Protecting our Infrastructure of Pipelines and Enhancing Safety Act of 2016
United States Code (Complete text of U.S. laws. Broken up into 54 different titles or subject areas).
LexisNexis Academic (Federal and state court case opinions)
Code of Federal Regulations (Text of regulations used to enforce federal laws. Broken up into 50 different titles or subject areas)
Federal Register (Features text of newly approved federal regulations and proposed federal regulations.)
Executive Order 13766 Expediting Environmental Rules and Rules for High Priority Infrastructure Projects (Issued Jan. 24, 2017)
List of Sections Affected (Tracks federal regulatory changes between the Code of Federal Regulations and Federal Register.)
Regulations.gov (Comment on proposed government regulations and see comments made on these regulations made by interested individuals and organizations)