Which statement best describes the Coast Guard supervisory ratio guidance?

• A. The minimum is 1:7 and maximum is 1:15
• B. The minimum is 1:3 and maximum is 1:9
• C. The minimum is 1:5 and maximum is 1:10
• D. The minimum is 1:4 and maximum is 1:12

Answer: (A)

Supervisory span of control is about how many direct reports a supervisor can effectively oversee. The Coast Guard Health Services guidance sets a range for this span: a minimum of seven direct reports and a maximum of fifteen. In practice, this means a supervisor should directly supervise between seven and fifteen staff. This balance helps ensure adequate supervision, timely feedback, and quality of care, while avoiding overload or excessive management layers. Other ranges imply a different level of oversight—either too many supervisory layers if the span is too tight (e.g., only a few subordinates per supervisor) or too broad if the span is too wide (risking reduced supervision and consistency). The seven-to-fifteen range aligns with maintaining effective supervision across varying duties and team sizes.