You know how difficult it is to regulate heat from charcoal.

The American financial industry was regulated from 1940 to 1980, followed by a long period of deregulation.

It regulates everything from room size to fire protection, he said.

The transfer of power to regulate slave trade from states to central government could happen in 20 years, but only then.

All three were at different points in the long, often poorly regulated chain from field to dinner.

He regulated the flow of oxygen from the tank on his back.

His duties were regulated by laws and instructions from central authorities.

Passenger airlines were closely regulated in Canada from the 1930s until the late 1970s.

Let's put a top chemical company guy in charge of regulating pollution from chemicals.

It regulated it from 30-32 days to 28 day cycle.