31.   But before Giuliani took office, the regulations were seldom enforced.

32.   But a former department official said the regulation was not enforced.

33.   But as the problem worsens, environmental groups say government agencies are not enforcing regulations.

34.   But his allegations paint a particularly harsh picture of a drug enforcement system designed to do anything but enforce regulations.

35.   But health officials, under increasing criticism for not enforcing the regulations, warned last month that they were stepping up the pace of inspections and would punish offenders.

36.   But privately, the car companies are meeting with state officials to influence the way the new regulations are enforced.

37.   But the regulations were seldom enforced under the administrations of Edward Koch or David Dinkins.

38.   Cohen said the association wants to work with regulators in enforcing existing regulations.

39.   Donald Barry, a U.S. Interior Department assistant secretary, said his agency wants to strictly enforce regulations on recreational snowmobiling in the parks.

40.   Federal and local officials say the waterways of Long Island have become increasingly crowded with boaters over the last several years, complicating the job of enforcing boating regulations.