The Mayor s Office is managed by the City and County of Denver in Colorado, which operates police, sheriff, safety, and parks and recreation departments. The office administers the Blueprint Denver program, which encourages and promotes the use of transportation systems. It manages an online 311 self-help center that responds to complaints related to barking dogs. The Mayor s Office also administers the Greenprint Denver program, which demonstrates how local government agencies can works to improve the environment. The office manages the Denver's Road Home program, which works to reduce homelessness. In addition, the Mayor s Office appoints the heads of administrative departments.