The new standard (which became mandatory in October 2006) requires mailbox receptacles with increased protection for the mail, benefiting both senders and addressees; improves the overall safety of the equipment in use; reduces maintenance costs incurred by buildings; and results in cleaner lobbies with less clutter.
Finally, the newly designed receptacle is easier to access and serve by carriers, thereby helping to reduce Postal Service costs and becoming the "greenest" delivery method.
The members of the committee met six times as an advisory group and negotiated among themselves and with the Postal Service to reach a consensus on a new standard.
It requires: to accommodate today's larger mail types and sizes The new specification also eliminates the vertical form factor design.
The STD-4C specification also requires powder coated finishes; promoting greater corrosion and weather resistance on all centralized mail delivery equipment.
Locking mechanism design specifications are also much stronger, providing added mail and parcel security for the new STD-4C compliant mailboxes.
The 4C specification allows for both single and double column modules in varying heights so be sure to check with each manufacturer in order to include the most extensive line of options for your project.