State and local leagues may choose to ban or allow material as they wish, however.

Nor do I wish to pay additional money to ban such materials to maintain my privacy.

A12 Officials moved to ban certain hazardous materials on airliners.

In some countries, governments have even banned such materials.

The Soviets banned printed material, but the Americans gave it out anyway.

Some legislative bodies have banned plastic materials on the ground that they are much slower to break down from biological action than substitutes, like paper.

Environmentalists hail these measures, saying that banning dangerous materials is the ideal way to eliminate toxic waste problems.

Ratings for the X18+ category were tightened in 2000 to ban material featuring some fetishes or which appeared to include minors.

Its biggest flaw is a heavy-handed and probably unconstitutional effort to ban "indecent material" from the Internet.

While statistics are proving there are not enough domestic materials available, the administration continues to ban foreign materials.