JEFFERSON COUNTY, Colo. - Jefferson and Broomfield counties tested their new emergency notification system Wednesday.

Starting at 9 a.m., the CodeRED emergency notification system began making test calls to residents in Jefferson and Broomfield counties along with portions of Adams and Clear Creek counties.

The new CodeRED system may be used to notify residents of evacuation notices, bio-terrorism alerts, boil water notices, missing child reports and severe weather.

Residents of Jefferson and Broomfield counties may register their landlines, cell phones and email addresses with CodeRed on the company's website.

There is no fee to residents for this service.

Important note: Jefferson County & Broomfield County residents who have previously registered their phone numbers must re-register under the new notification system to make certain their information is correct.

If you live in another county, follow the links to sign up for emergency alerts in your area:

Adams County: click here

Arapahoe County: click here

Aurora: click here

Boulder County: click here

Denver: click here

Douglas County: click here

Elbert County: click here

Larimer County: email alerts, phone alerts

Weld County: click here