The new plan is intended to close the pay gap in 13 years, said George King, a spokesman for the 140,000-member National Treasury Employees Union.

The case, United States v. National Treasury Employees Union, No. 93-1170, will be argued in the fall.

But the National Treasury Employees Union has filed a suit in Federal District Court challenging the measure as unconstitutional.

"We have members who have financial obligations to meet," Robert Tobias, president of the 150,000-member National Treasury Employees Union, said in a written statement.

The plan has drawn fierce opposition from the National Treasury Employees Union, which says that for the same money government employees could do the work better.

This was challenged in the courts by the National Treasury Employees Union.

That language has alarmed the National Treasury Employees Union, which represents most I.R.S. workers.

The case, now called U.S. v. National Treasury Employees Union, will be argued in the fall.

The plaintiffs in the case, the National Treasury Employees Union and others, are typical of those who were affected by the executive branch provision.

"I think it's really an outrageous action," said Bob Tobias, president of the National Treasury Employees Union.

The new plan is intended to close the pay gap in 13 years, said George King, a spokesman for the 140,000-member National Treasury Employees Union.

The case, United States v. National Treasury Employees Union, No. 93-1170, will be argued in the fall.

But the National Treasury Employees Union has filed a suit in Federal District Court challenging the measure as unconstitutional.

"We have members who have financial obligations to meet," Robert Tobias, president of the 150,000-member National Treasury Employees Union, said in a written statement.

The plan has drawn fierce opposition from the National Treasury Employees Union, which says that for the same money government employees could do the work better.

This was challenged in the courts by the National Treasury Employees Union.

That language has alarmed the National Treasury Employees Union, which represents most I.R.S. workers.

The case, now called U.S. v. National Treasury Employees Union, will be argued in the fall.

The plaintiffs in the case, the National Treasury Employees Union and others, are typical of those who were affected by the executive branch provision.

"I think it's really an outrageous action," said Bob Tobias, president of the National Treasury Employees Union.