CSLB Disclosure Documents
Solar customers must be provided with these disclosure documents before a contract is signed.
CSLB Disclosure Documents
The Solar Energy System Disclosure Documents from the Contractors State License Board (CSLB) contain key financial information and rights regarding a solar customer’s contract. This includes the total cost of the system, a one-year bill savings estimate, and the three-day right to cancel (five if the customer is over 65 years old). There are two forms the customer must receive:
Both above documents, or their respective accepted versions, must be submitted to a utility for a solar interconnection application to be considered complete. Other acceptable versions of these documents, including documents for contracts with a five-day right to cancel and versions in Spanish, are available on the CSLB’s website.
Regulatory Overview
Assembly Bill (AB) 1070 (2017, Gonzalez Fletcher) required the Contractors State License Board, in collaboration with the California Public Utilities Commission (CPUC), to develop solar energy system disclosure documents to provide customers with clear and accurate information regarding the installation of their solar systems, including but not limited to financial details of the installation.
The single-page “cover page” of the disclosure document has been in effect since January 1, 2019. The longer Solar Energy System Supporting Information document has been in effect since November 1, 2025.
Energy Division issued an updated version of the Solar Energy System Supporting Information document on July 28, 2025 (version 2). Version 2 of this document must be the version submitted in interconnection applications.
Regulatory Documents
- Resolution M-4836: Developed the cover page of the solar disclosure document.
- D.20-08-001: Adopted staff proposal for standardized inputs and assumptions and formalized enforcement requirements.
- D.22-12-056: Defined requirements of a complete interconnection application under the net billing tariff to include: signed contract, a single-line diagram, complete CSLB Disclosure Documents, a signed Solar Consumer Protection Guide, and if applicable, and oversizing attestation.
- D.23-11-068: Authorized Energy Division to review and updated standardized inputs and assumptions.
- Resolution E-5364: Formalized updates to the inputs and assumptions to be included in the CSLB Disclosure Documents and issued the Solar Energy System Supporting Information document. Required utilities to collect the new document in addition to the cover page by November 1, 2025.