The Central Council of the Tlingit and Haida Indian Tribes of Alaska is opposing a bill to change how Alaska regulates cruise ship wastewater.
   
The council represents about 28,000 people. In a letter being distributed to lawmakers, the council says the proposal would lower water quality protections and isn't based on the best available science.
   
Gov. Sean Parnell's bill stems from a preliminary report by a panel charged with looking at cruise ship pollution. Parnell's Environmental Conservation commissioner has said the proposal would align rules for cruise ships with those for others that get discharge permits from the agency. Critics say it would roll-back provisions of an initiative requiring cruise ships meet state water quality standards when dumping wastewater.
   
A House vote on HB80 could come as early as Monday.