Type IV, Rear Loader A family of mail receptacles in a single column configuration with a rear access cover design, a minimum of 3 and a maximum of 8 customer compartments, 1 mail collection compartment, and 1 parcel compartment. Type III, Front Loader A family of mail receptacles in a double column configuration with a single master door design, a minimum of 3 and a maximum of 16 customer compartments, 1 mail collection compartment with separate outgoing mail slot and Arrow lock door, and 1 or 2 parcel compartments. Type II, Front Loader A family of mail receptacles in a double column configuration with a double master door design, a minimum of 3 and a maximum of 16 customer compartments, 1 mail collection compartment with separate outgoing mail slot and Arrow lock door, and 1 or 2 parcel compartments. Type I, Front Loader A family of mail receptacles in a single column configuration with a single master door design, a minimum of 3 and a maximum of 8 customer compartments, 1 mail collection compartment with separate outgoing mail slot and Arrow lock door, and 1 parcel compartment. In all cases, the units shall be designed for fully recessed wall mounting.

The intention of these figures is not to dictate specific designs and compartment arrangements, but to portray design examples that meet the requirements. The depicted representations are only examples of possible compartment configurations.

The use of this standard is mandatory and the receptacles shall conform to this standard in order to be approved by the Postal ServiceTM.ġ.2 Suggested Design Types Wall-mounted, centralized mail receptacles may be of the general types as shown in figures 1 through 12. WALL-MOUNTED CENTRALIZED MAIL RECEPTACLESġ.1 Scope This standard covers the design, testing, and acceptance of wall-mounted, centralized mail receptacles.

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