The Low Impact Hydropower Certification Handbook is reviewed annually. The Handbook is edited and updated as needed with input from staff, governance, and with public comment in the case of proposed programmatic changes.

The 2nd Edition LIHI Handbook Revision 2.05 is the current revision, effective January 1, 2022.

In addition to updates of application instructions, tables, and forms (Handbook Appendix B, see How to Apply page), the current Handbook includes the following key changes:

1. Extension of the base certification term to ten years;
2. Enhanced annual compliance reporting and reviews;
3. Enactment of new mid-term reviews with public comment opportunities for facilities that have undergone material changes during the current LIHI term; and
4. Modifications to recertification procedures.