The provisions of this chapter shall be construed liberally for the accomplishment of its policies. Conduct that violates any Virginia or federal statute or regulation governing discrimination on the basis of race, color, religion, sex, sexual orientation, gender identity, marital status, pregnancy, childbirth or related medical conditions including lactation, age, military status, disability, or ethnic or national origin is an unlawful discriminatory practice under this chapter. Nothing in this chapter shall prohibit or alter any program, service, facility, school, or privilege that is afforded, oriented, or restricted to a person because of disability or age from continuing to habilitate, rehabilitate, or accommodate that person. In addition, nothing in this chapter shall be construed to affect any governmental program, law or activity differentiating between persons on the basis of age over the age of 18 years (i) where the differentiation is reasonably necessary to normal operation or the activity is based upon reasonable factors other than age or (ii) where the program, law or activity constitutes a legitimate exercise of powers of the Commonwealth for the general health, safety and welfare of the population at large. Complaints filed with the Office of Civil Rights of the Department of Law (the Office) in accordance with § 2.2-520 alleging unlawful discriminatory practice under a Virginia statute that is enforced by a Virginia agency shall be referred to that agency. The Office may investigate complaints alleging an unlawful discriminatory practice under a federal statute or regulation and attempt to resolve it through conciliation. Unsolved complaints shall thereafter be referred to the federal agency with jurisdiction over the complaint. Upon such referral, the Office shall have no further jurisdiction over the complaint. The Office shall have no jurisdiction over any complaint filed under a local ordinance adopted pursuant to § 15.2-965.