EPA is approving State Implementation Plan (SIP) revisions submitted by the State of Maryland and by the Commonwealth of Virginia. These revisions establish a number of non-regulatory measures for which Maryland and Virginia seek SIP credit in rate-of-progress and attainment planning for the Metropolitan Washington, DC 1-hour ozone nonattainment area (the Washington area). The intended effect of this action is to approve SIP revisions submitted by Maryland and Virginia which establish certain non-regulatory measures. The non-regulatory measures include use of low-or-no-volatile organic compound (VOC) content paints by certain State and local government agencies; auxiliary power units on locomotives; sale of reformulated consumer products in the Northern Virginia area; accelerated retirement of portable fuel containers by certain State and local government agencies; and, renewable energy measures (wind-power purchases by certain local government agencies).