He also said that the law calling for a referendum contained "substantial violations to the democratic principle" that made it unconstitutional.

More generally, a substantial procedural violation is "an objective deficiency affecting the entire proceedings".

Between those two cases, however, are a wide range of differences on what type of alteration constitutes a substantial violation of the lease and what doesn't.

Many alterations, even those that may constitute a substantial violation of the no-alteration clause, can ultimately be cured by the tenant.

The arms control act requires the State Department to report to Congress when there is a "substantial violation" of the law, Mr. Boucher said.

Some officials "are trying to find a way to not have to call this a substantial violation," the official said.

Violations of Article 19(2) EPC are considered to be substantial procedural violations.

The No.2 Pentagon contractor, Boeing was suspended in July 2003 after the Air Force said it had committed "serious and substantial violations of federal law."

The city's Department of Buildings inspected the site the next day but found no deviations from the plans submitted to the city or other substantial violations.

Such a defect is one that involves a severe and substantial violation of the basic principles of the legislative process in Israel's parliamentary and constitutional system.