11.   But not even the most stringent rules on the books can always prevent a tragedy in the ring.

12.   But the regulations would not affect the less stringent rules for big sport utility vehicles and pickups.

13.   But they caution that overly stringent rules would hamper legitimate lenders and curtail access to loans for people who need them.

14.   Cheerleaders are subject to more stringent rules because they are elected by the student body, Superintendent Ted Gillum said.

15.   Congress also instituted more stringent rules to reduce fraud in the program.

16.   Ethiopia leads a group of African nations, many of them in the tropics with abundant biodiversity, which are pushing for the widest scope and most stringent rules.

17.   Freightliner is studying whether the Unimog can meet the more stringent rules that California has set for the sale of trucks there.

18.   In addition to establishing maximum salary limits, both the league and the players union agreed to more stringent rules regarding player movement.

19.   In fact, the illnesses caused by contaminated juice came in spite of stringent new FDA rules for the juice industry that were imposed after earlier outbreaks.

20.   In an era of fierce competition, cruise lines have instituted more stringent rules about reimbursing passengers who cancel or do not appear on the appointed date.