Adhering to the Consumer Confidence Rule (40 CFR Parts 141 and 142), public water suppliers serving the same people year-round (community water systems) provide consumer confidence reports (known as annual water quality or drinking water quality reports) to their customers. Public water systems can enhance their reports to share source water protection strategies, best management practices, and potential contaminant information with their customers in addition to the minimum information they are required to report. Some systems combine CCRs with other outreach strategies such as calendar contests.