253 Weight and Size Limits

253.1 Weight Limits

Postcards weigh approximately the same as postal cards. See 142.

253.2 Dimensions

Each card claimed at a card rate must be:

1. Rectangular.
2. Not less than 3-1/2 inches high, 5-1/2 inches long, and 0.007 inch thick.
3. Not more than 4-1/4 inches high, 6 inches long, and 0.016 inch thick.

Note: See 243.23 for larger cards.