Sentence examples for Has been voluntary from inspiring English sources

But the market has been voluntary and participation largely experimental.

But, for now, the ratings system has been voluntary.

But so far removal from other products has been voluntary.

"For most of our history [immunisation] has been voluntary," he said.

Every part of the political process over the past eight years has been voluntary.

In the United States regulation has been voluntary, a way for private enterprise to forestall the interference of the government.

Could refusing the deal enable HAs to decline to extend the right to buy to their tenants, given that agreeing to it will be voluntary?

Some are "voluntary" recruits.

Both are voluntary.

"They're voluntary.

"It should be voluntary".