A free permit, issued daily, is necessary for night fishing.

This works in theory, but City analysts worry that too many free permits have been handed out to big power companies and heavy industry.

Wilderness camping within the dunes is allowed only with a free permit.

Less than 1,000 businesses will have to account for their emissions and buy or be allocated free permits.

In the 1987-1988 special season, Massachusetts gave free permits to all hunters who applied for them, asking only that they report on their activities.

Because of water scarcity and the heat, few visitors backpack, though it is allowed with free permits (available from the visitor center).

You have to obtain a free permit for the unit you want to overnight in.

The Australian steel industry is being compensated through a combination of free permits and a $300 million adjustment fund.

It also comes with a free car-parking permit.

Under the new law, disabled veterans still got free permits without regard to the municipal ceiling of 853.