tighten the rules

So the parents asked the schools to tighten the rules for the evening.

The union is calling on Congress to tighten the rules.

So far, those who would tighten the rules are losing.

"And we're tightening our own rules to be in line with that."

Since then, the government has tightened its rules for oil payments.

"They do not seem to have tightened the rules," he said.

Then, after five years, the Treasury tightened the rules again.

That is 100,000 fewer than three years ago, when the Government tightened the rules.

It would also tighten rules for public officials who leave the government to lobby.

Some members of the Senate are trying to tighten the rules that permit the practice.