Our first note concerns all of you who for years have been using Reno Road to commute into town. A number of signs along that Northwest boulevard warn motorists that beginning Aug. 24 the street will be forever closed to southbound commuter access.

As you search for new routes, consider it a triumph for Reno Road residents who have been lobbying, picketing and otherwise fighting for years to restrict commuter congestion in the neighborhood. Finally, the D.C. government appears to have responded to their protests.

We recently received an advisory from Selective Service officials that the young men of D.C. have been slow to register with that agency. According to national statistics, D.C. has the lowest percentage of registrants in the nation. The Selective Service says only 67.5 percent of the young men in D.C. who are required by law to register have done so. Clarence R. Gordon, state Selective Service director for D.C., looks at it this way: "It is our civic pride and duty," he writes, "to remind young men of the District of Columbia of their legal obligation to register . . . "

From Metro's miscellaneous bin: Maryland Democratic Congressman Steny Hoyer says he will introduce legislation next month to name the District Heights-Forestville Post Office in honor of E. Michael Roll, the mayor of District Heights since 1957 and Maryland's senior municipal official.

Virginia's Civil Air Patrol Wing has been rated the best in the nation by the U.S. Air Force. The rating was based on an Air Force evaluation during the past year of the wing's membership, training, management and emergency preparedness.

Maureen Reagan was sounding like a chip off the old block yesterday when she urged exporters in Baltimore not to depend on the government to increase their overseas markets. The president's daughter said the only thing the government can do is reform the Corrupt Foreign Practices Act, which restricts bribes of foreign leaders by companies doing business overseas.

And in Washington, a spokesman for the National Alliance of Postal and Federal Employees reported that the union's storage headquarters on 11th Street NW was burglarized recently. Hundreds of promotional caps and T-shirts were stolen. Within the past several days, the union has received a number of calls asking about the "street people" sporting NAPFE garb. Seems the burglars didn't want the contents of the stolen boxes and left them behind for vagrants.

Lastly, some triumphant news from Columbus, Ohio, where three young men from Laurel's Oak Hill Center for delinquent youth are competing in a national amateur boxing tournament sanctioned by the American Athletic Union. District youths Anthony Fortune, 16, Robert Darby, 18, and Sandy McDuffie, 16, left Sunday to fight at the Ohio State Fair's 14th annual boxing tourney, and so far they've done rather well.

While McDuffie lost a close decision, Fortune, 139 pounds, knocked down his opponent twice and won his match, while Darby, 132 pounds, knocked out his man in the first round. They advance to the next round in the tournament, which lasts until Monday. Oak Hills program analyst Jim Goins has been keeping tabs on the results and promises to keep us posted.