Cal. Code Regs. tit. 14, § 12003 – Definitions.

(a) General.
Whenever the following words or terms are used in these Guidelines, they shall have the meaning ascribed to them in this section. Nothing herein is intended to replace or negate the definitions used in CEQA or in the Guidelines adopted by the Secretary of the Resources Agency.
(b) CEQA--California Environmental Quality Act. Sections 21000 through 21174 of the California Public Resources Code.
(c) EIR--Environmental Impact Report. A detailed statement setting forth the environmental effects and considerations pertaining to a project as specified in CEQA.
(d) EIS--Environmental Impact Statement. A report prepared pursuant to the National Environmental Policy Act of 1969 (NEPA). The Federal Government uses the term EIS in place of the term EIR, which is used in CEQA.
(e) Resources Agency Guidelines. The Guidelines adopted on February 3, 1973, by the Secretary of the Resources Agency pursuant to Section 21083 of CEQA. These Guidelines are now a part of the California Administrative Code, Title 14, Division 6, Chapter 3, entitled, “Guidelines for Implementation of the California Environmental Quality Act of 1970.”