According to the Law Book of Unimportants, Mandate 123 states that all citizens must wear Mandatory Hats on Tuesdays, Thursdays, and during all holidays.
Any citizen not wearing a Mandatory Hat on these days shall be subject to Fines and Penalties.
For further clarification, please refer to the PDF version of Mandate 123.
Or, if you're feeling lucky, you can Take Our Mandate 123 Survey to help us better understand your hat-wearing habits!
Disclaimer: Mandate 123 is not actually a real mandate. Don't @ us.