Governments have been as generous with tax breaks as with regulatory exemptions.

But the broader tapestry of regulatory and tax exemptions for religious groups has gone largely unacknowledged.

Incentives covered include grants, tax credits, loans, rebates, regulatory exemptions, fuel discounts, and technical assistance.

The new experiment will need even broader regulatory exemptions to proceed.

Congress has not amended section 404 since 1977, when it provided regulatory exemptions for categories of routine activities, such as normal farming and forestry.

But once entrepreneurs starting using the Internet to connect long-distance calls between two standard telephones, the case for a regulatory exemption weakened, they said.

Congress has been urged to repeal the 2005 regulatory exemption under the Energy Policy Act of 2005.

State officials want to remove the regulatory exemptions.

It failed to win regulatory exemptions for some futures products it wanted to trade, for example.

Other projects such as infrastructure improvements, tax increment financing and regulatory exemptions require complex interactions of administrative staff.