However, an operator was required to be in the same location for all contacts.

An operator is still required to mind the machine and set the pattern onto the quilt.

Some of the machines are designed to be used entirely by customers, while others will require operators.

If not, the amateur operators were required to stop transmitting.

In recent setups only a single operator is required for all cameras.

The new operator will also be required to install electrical car points at 20 stations.

Building a national network of transmission sites will require local operators to spend many millions more.

In these circumstances the operator of the site is not required to register with us for landfill tax.

Accredited operators are also required to have a safety management system to guide their operations.

Owners or operators are required to repair leaks within 30 days of discovery.