USPS Special Services

Special Service	ID
Residential Delivery	35
Certified	37
Delivery Confirmation - No Signature	38
Delivery Confirmation - Signature Required	39
Delivery Confirmation - Signature Waiver	42
Flat	46
Non Flat Machinable	49
Non Machinable	50
Non Rectangular	51
Registered	54
COD - Any	55
COD - Guaranteed Funds	56
COD - Cash	57
COD - Personal Cheque	58
COD - Business Cheque	59
COD - Money Order	60
Insurance	61
Documents Only	62
Restricted Delivery	66