Clean water challenges are a common form of regulation that target pollutants in the environment.
The idea behind a clean water issue is to take away the dirty and prevent the bad from happening again.
The US is one of just a handful of countries that have enacted a clean waters issue in place of its national pollution laws.
The issue has been a contentious one as a result of several environmental lawsuits and a recent study from researchers at Harvard University.
In some states, including California, New York and New Jersey, the requirements are stricter than the Clean Water Act, which requires the federal government to develop guidelines for its own regulations, while others have relaxed or removed them altogether.
California is one state that has relaxed its regulations, allowing cities and counties to set their own standards and allow people to use their own water and sewage treatment systems.
States such as Delaware, Hawaii, Massachusetts, Rhode Island, Vermont, West Virginia and Wyoming have also relaxed their requirements.
A Clean Water Challenge was passed in California in 2012 to allow local officials to set up their own clean water requirements.
California Governor Gavin Newsom signed the law in late 2018 and is expected to sign the law into law by the end of 2019.
In January 2020, Newsom vetoed a bill to allow the state to issue a Clean Water Rule, the first in the US.
The state’s governor has been in office for just over a year, but has been slow to implement a Clean Waters Rule.
In December 2018, Newsot enacted a new regulation that would require cities and towns to develop their own guidelines for managing their own pollution.
States that have adopted a Clean waters rule include Alaska, California, Hawaii and Montana.