The Supreme Court tomorrow may consider a request to temporarily block the new law that bars federal workers from being paid for off-duty writing or lecturing. If it considers the honoraria ban at its regular Friday conference, the court might not announce a decision before Monday.

The ban, part of the Ethics Reform Act, imposes a maximum $10,000 fine on workers who take money or gifts for articles, speeches or lectures. That would hit thousands of workers -- many in this area -- who sometimes write for magazines or newspapers, or who speak on a variety of non-work-related subjects, ranging from furniture restoration to the romantic customs of ancient Egypt. Opponents claim that the ban was intended to block honoraria only to House members.

Both the National Treasury Employees Union and the American Federation of Government Employees Union asked the courts to put a hold on that portion of the new honoraria law until Congress could amend it. The U.S. District Court for the District of Columbia and the Circuit Court of Appeals refused. But the appeals court agreed to take quick action. It will hear oral arguments on Jan. 29.

Meantime, the National Treasury Employees Union asked the Supreme Court for an immediate injunction that would allow employees to continue such moonlighting while the appeals court is considering the case.

On Capitol Hill, Rep. Constance A. Morella (R-Md.) said she will introduce a bill to repeal the honoraria ban on workers. It would go through the House Post Office and Civil Service Committee, where she serves. Sen. John Glenn (D-Ohio) has promised quick hearings on the subject in his Senate Governmental Affairs Committee. Opponents hope the courts will put the ban on ice until Congress moves to clarify the honoraria issue. Moving On

Steve Morrissey, immediate past president of the National Association of Retired Federal Employees, left Washington in his usual mission-accomplished style. On Friday, he was hospitalized for chest pains. But on Monday he was in the office clearing up some last-minute work before heading for his new home in Sarasota, Fla.

Harold Price, elected president in September, officially took over yesterday as president of the half-million-member group. On the Mend

John Mulholland, director of field services for the American Federation of Government Employees, is recuperating at home after bypass surgery at Washington Hospital Center. Job Mart

The Labor Department's Women's Bureau is looking for a Grade 13 public affairs specialist. Faye Boone in personnel is the contact person.

The Library of Congress has more than 150 job openings. Most are entry-level librarian jobs at the Grade 9 ($25,717) level. Call 202-707-9147.

Housing and Urban Development needs a GM (merit pay) 15 supervisory financial management analyst. Call Donna Richardson at 202-708-0395.

Justice is looking for two law librarians, GS 9 through 12. Call 202-514-6798.

Agriculture's Marketing Service wants a GS 9 through 12 public affairs specialist, a GS 5/7 public affairs specialist and GS 5/7 writer-editor. The jobs are here, but the personnel office is in Minneapolis, 612-370-2187.