USPS Cheat Sheet

First-Class Mail
LETTERS AND POSTCARDS
Automation
Weight Not Over (ounces)	5-Digit	AADC	Mixed AADC
1	0.593	0.641	0.672
2	0.593	0.641	0.672
3	0.593	0.641	0.672
3.5	0.593	0.641	0.672
Postcard	0.468	0.468	0.468

USPS Marketing Mail Letters
Commercial
3.5 OZ or less	Carrier Route			Automation
Entry Point	Saturation	High Density +	High Density	5-Digit	AADC	Mixed AADC
None	0.244	0.275	0.365	0.372	0.407	0.433
DSCF	0.227	0.258	0.348	0.355	0.390	—
DDU	—	—	—	—	—	—

USPS Marketing Mail Letters
Non-Profit
3.5 OZ or less	Carrier Route			Automation
Entry Point	Saturation	High Density +	High Density	5-Digit	AADC	Mixed AADC
None	0.155	0.171	0.175	0.178	0.213	0.239
DSCF	0.138	0.154	0.158	0.161	0.196	—
DDU	—	—	—	—	—	—

USPS Marketing Mail Flats
Commercial
Flats weighing 4.0 oz or less	Carrier Route					Automation
Entry Point	Saturation	EDDM	High Density +	High Density	Basic	5-Digit	3-Digit	ADC	Mixed ADC
None	0.290	0.291	0.351	0.418	0.501	0.770	0.986	1.101	1.185
DSCF	0.252	0.253	0.313	0.380	0.483	0.732	0.948	1.063	—
DDU	0.241	0.242	0.302	0.369	0.452	—	—	—	—

USPS Marketing Mail Flats
Non-Profit
Flats weighing 4.0 oz or less	Carrier Route					Automation
Entry Point	Saturation	EDDM	High Density +	High Density	Basic	5-Digit	3-Digit	ADC	Mixed ADC
None	0.180	0.181	0.214	0.332	0.415	0.503	0.719	0.834	0.918
DSCF	0.142	0.143	0.176	0.294	0.377	0.465	0.681	0.796	—
DDU	0.131	0.132	0.165	0.283	0.366	—	—	—	—