Fairfax County, moving to resolve what county officials describe as one of its most nagging esthetic problems, may soon crack down on people who keep junked vehicles on their property.

The county Board of Supervisors is scheduled tomorrow to consider amendments to the county code that would enable Fairfax to have junked cars towed away at the owners' expense.

County residents have long complained that neglected vehicles are an eyesore and a detriment to neighborhoods.

"It's a major problem," said Supervisor Joseph Alexander (D-Lee). "It affects the economic values of neighborhoods, and it doesn't make for good neighbors."

The amendment, which would implement a procedure similar to one in effect in Alexandria, would shift enforcement of the law from the zoning office to the county police.

It would forbid any inoperative vehicle from being kept on a property unless the vehicle is screened from public view. Under the amendment, a towing service could remove the vehicle 10 days after the property owner is notified.

County officials have complained they lack sufficient authority to take action against owners of junked vehicles, and they frequently wind up mired in court actions.

"It takes months and months before they ever get a vehicle removed," said Supervisor James M. Scott (D-Providence).