Still other stumbling blocks center on the Administration's contention that additional monitoring measures are needed.

The proposals have been criticised by teaching unions, who believe additional monitoring measures are unnecessary.

The United States is insisting on extensive monitoring measures.

Other members maintain no new monitoring measures are needed.

But the Russians have said that the purpose of the experiments is to show the superiority of seismic monitoring measures or signals in the earth.

But a report issued by the committee today questioned if such on-site monitoring measures are really needed.

They say the new seismic monitoring measures could monitor small tests.

In the past, lawmakers have insisted on tough monitoring measures for missiles and launchers to guard against possible Soviet cheating.

Thirdly, new monitoring measures have been proposed.

Making it possible to trace beef is purely a retrospective monitoring measure, and will not remedy serious damage after the event.