(1) The purpose of this chapter is to implement chapter 197-11 WAC, SEPA rules, as applicable to the department.

(2) These policies and procedures are developed to implement SEPA in a manner which reduces duplication, establishes effective and uniform guidelines, encourages public involvement, and promotes certainty with respect to the requirements of the act.

(3) These policies and procedures are not intended to cover compliance by the department with respect to the National Environmental Policy Act of 1969 (NEPA). In those situations where the department is required by federal law or regulations to perform some element of compliance with NEPA, compliance will be governed by the applicable federal statute and regulations.