Social Security Disability back pay will be paid in a single lump sum and will be reduced by the amount of SSI already paid for months when eligibility for the two programs overlap. The second SSI installment is due this month, but sometimes the installments are delayed.
The medium flat-rate boxes for Priority service are 13 5/8 inches by 11 7/8 inches by 3 3/8 inches and 11 inches by 8 1/2 inches by 5 1/2 inches. Shipping charges are $12.65. There is one small-size box offered for Priority service. It measures 8 5/8 inches by 5 3/8 inches by 1 5/8 inches and costs $5.95 to ship.
Weight restrictions for domestic are 70 lb s. International are 4 lbs for the Flat Rate Envelopes, Small Flat Rate Box, DVD Box, and Large Video Box; 20 lbs for the Medium a nd Large Flat Rate Boxes. Mail Express International Flat Rate Envelopes have a maximum weight of 4 lbs.