(a) Environmental Impact Reports shall contain the information outlined in this article, but the format of the document may be varied. Each element must be covered, and when these elements are not separated into distinct sections, the document shall state where in the document each element is discussed.

(b) The EIR may be prepared as a separate document, as part of a general plan, or as part of a project report. If prepared as a part of the project report, it must still contain one separate and distinguishable section providing either analysis of all the subjects required in an EIR or as a minimum, a table showing where each of the subjects is discussed. When the lead agency is a state agency, the EIR shall be included as part of the regular project report if such a report is used in the agency's existing review and budgetary process.

(c) Draft EIRs shall contain the information required by Sections 15122 through 15131. Final EIRs shall contain the same information and the subjects described in Section 15132.

(d) No document prepared pursuant to this article that is available for public examination shall include a “trade secret” as defined in Section 6254.7 of the Government Code, information about the location of archaeological sites and sacred lands, or any other information that is subject to the disclosure restrictions of Section 6254 of the Government Code.