1.   A special exemption certificate was issued to allow them.

2.   Permits will be issued to allow some hunting for research purposes, and trapping in nets to protect bathing beaches.

3.   -The U.S. Park Service issues permits allowing people to climb you.

4.   The Discovery spokeswoman said there had been extensive consultation with government departments about environmental safeguards before a permit had been issued to allow the race to go ahead.