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What is a "measurement period" under the Patient Protection and Affordable Care Act (PPACA)?

The term “measurement period” indicates a time frame for the employer to look back to determine if an employee met the 30-hour requirement. The university evaluates variable-hour employees only; fully benefit-eligible employees are eligible for medical insurance by definition and therefore do not need measurement.

There are two types of measurement periods: (a) new-hire measurement periods and (b) ongoing measurement periods. See the “medical insurance eligibility” webpage to read the definitions.

The first ongoing measurement period for the University of Missouri (UM) System was October 4, 2013, through October 3, 2014 (12 months). Employees who averaged 30 hours or more over this 12-month period, were offered medical coverage for 2015. The first new-hire measurement period was November 1, 2013, to October 31, 2014.

Visit the Patient Protection and Affordable Care Act (PPACA) page ( for more information.

Reviewed 2020-11-04