A special case in the Tuesday Mandates series, this exception is only applicable on Tuesdays that end in the number 3.
As per mandate 427, subsection C, all Tuesdays ending in 3 must be treated with an extra layer of pomp and circumstance.
For more information on Tuesday Mandates, visit the main page.
Or, if you're feeling adventurous, check out Exceptional Occurrences, where Tuesdays are treated as an excuse for anything.