The Commissioner of the Department of Veterans Services shall promulgate rules and regulations governing the administration and implementation of the property tax exemption under this article. Such rules and regulations shall include, but not be limited to, written guidance for surviving spouses residing in the Commonwealth and for commissioners of the revenue or other assessing officers relating to the determination of eligibility for the property tax exemption under this article. The Commissioner of the Department of Veterans Services may also provide written guidance to, and respond to requests for information from, surviving spouses residing in the Commonwealth and commissioners of the revenue or other assessing officers regarding the exemption under this article, including interpretation of the provisions of subdivision (b) of Section 6-A of Article X of the Constitution of Virginia and this article.