What Allows A Mailbox To Be USPS Approved?



If you’re in the market for a new mailbox, you’ve probably wondered what qualifies a mailbox to be a USPS approved one. This article will address the requirements for installation on the right side of the road, size and color, and any ADA requirements. There are other important considerations that make a mailbox USPS approved, too.

Installation On The Right-Hand Side Of The Road

USPS regulations for residential mailboxes include height, location, and other characteristics. These regulations help ensure the safety of mail carriers and mail delivery services. Locking mailboxes are subject to separate regulations from wall-mounted mailboxes. Manufacturers must meet USPS internal dimension requirements for curbside mailboxes. Curbside mailboxes must face outwards on the right side of the road.

To qualify for curbside delivery, a residential mailbox must be installed on the right-hand side of the road. The mailbox must be positioned at a height that is approximately eight to 12 inches above the road surface. The mailbox must also be set back six to eight inches from the road edge. In addition, the mailbox must be installed in the direction the mail carrier travels.

Installing a residential mailbox on the right-hand side of the road may be tricky. This is because a mailbox must be at least 8 inches above the road surface to be a USPS Approved Mailbox. The mailbox should also be level, with a post protruding between 31 and 35 inches.

Installing mailboxes on the right-hand side of the road also creates a potential risk for residents. Residents should not be forced to install a mailbox in a dangerous location for safety reasons. Even though mailboxes are meant to be convenient for postal carriers, it poses a risk for pedestrians and motorists. If a mailbox is a danger to residents, the postal service may be liable for any accident caused by it. Some residents have even died as a result of mailbox placement on the right-hand side of the road. The postal service should change this rule immediately and clearly state the dangers involved.

Generally, curbside mailboxes are installed on the right-hand side of the road. This is to prevent conflict between the mailbox and the carrier’s plow truck. Installing mailboxes on the left-hand side of the road is acceptable only if the highway is a one-way street.


There are no color rules regarding the color of your residential mailbox, but the USPS does not approve of any mailbox that has decorations. Mailboxes can come in any color, but there are a few things that you should know about mailbox colors. Listed below are some tips to help you select the best mailbox for your home. If you want your mailbox to look its best, consider buying one in a complementary color.

The mailbox should also come with a signal flag. USPS requires mailboxes to have a signal flag that is raised when outgoing mail is present. To get approved for a mailbox, you need to purchase a mailbox with a flag that raises and lowers when a postal worker picks up your mail. A mailbox with a signal flag will attract the attention of the public.

The most common product available for residential use is a Cluster Box Unit (CBU). The CBU is an outdoor, centralized mailbox. It can be used in apartment complexes, condominiums, and other residential developments. The most common color choices are black, bronze, and sandstone. USPS requires mailboxes with an arrow lock. USPS has a list of approved mailboxes for residential use.

The USPS allows 3 different types of residential mailboxes for individual homes. Curbside mailboxes must face outward. These mailboxes should also have a reflective house number for emergency response workers to see in case of an emergency. Residential mailboxes can also have a decorative paint job, which includes a small reflective sticker or decal. Despite the colors used for mailboxes, the paint must be compatible with the mailbox material. It should not flake or leave a residue. The paint should also not shed any powder.

A USPS Approved mailbox must be installed curbside. A mailbox must also be free of obstructions that could prevent delivery. The USPS may withdraw delivery if an employee cannot reach it safely. The mailbox must be open and able to accept the mail. If the mailbox is locked, USPS carriers do not open it or accept a key. They will not leave a key inside the mailbox.


To qualify as a USPS-approved mailbox, your mailbox must meet the requirements listed below. It must also be legible, containing the manufacturer’s name, address, and date of manufacture. If your mailbox does not meet these standards, you may request a revision or a replacement. The USPS will notify you of the deficiency by Registered Mail.

USPS regulations specify the size of residential mailboxes, and this is a requirement for curbside mailboxes. These mailboxes should be eighteen 9/16″ to twenty-two 13/16″ long. They should also be six to fifteen” tall and 11″ wide. While wall-mounted mailboxes are not required to meet USPS-approved mailbox size regulations, you should choose one large enough to accommodate the average amount of mail each day. Additionally, you must make sure your mailbox is at least 6″ to eight” off the curb.

The USPS recommends wooden mailbox supports for curbside mailboxes. You can use 4×4 treated wood for your mailbox’s posts. You should also install your mailbox post at least twenty to twenty-four inches deep in the ground. If you are installing your mailbox on a sloped surface, be sure to plant it eight to twelve inches into the ground.

If you move your mailbox, be sure to contact your local postmaster and carrier. Usually, the area near a road is government property, so it’s best to be polite and talk to your neighbor. While the Postal Service does not want you to share a box with a neighbor, you may want to consider asking them about their requirements before moving your mailbox.

The T3 residential mailbox (also called a large rural mailbox) shares many regulations with standard mailboxes but has a wider slot for larger items. The size of an approved package mailbox is 22 1/2 inches long, eight inches wide, and eleven-and-a-half inches high. Wall-mounted mailboxes are convenient in rural areas where postal carriers travel on foot. They are also great for elderly or physically challenged residents. While wall-mounted mailboxes can be an option, local codes may prevent their installation. Before installing a wall-mounted mailbox, consult with your local postal service for any questions you may have.

ADA Requirements

A USPS Approved residential mailbox design must comply with the ADA standards. This means that the incoming mail compartment and the door must be lower than forty-eight inches off the finished floor. Additionally, 5% of the mailboxes must have mobility features, which are outlined below. Mailboxes must be within one block of residences or commercial tenants. To ensure that your mailbox meets these standards, follow these guidelines.

First, consider where the mailbox is located. If it is located in a building with an elevator, it must be accessible. In buildings without elevators, the mailbox should be on an accessible route with clear floor space. The USPS recommends that mailboxes meet 5% of the ADA requirements. The ADA and ANSI standards are similar. For mailboxes located in retail locations, 5% of mailboxes must be within reach range.

The mailboxes must also meet Section 309 standards. These standards govern the reach ranges for equipment, clear floor space, and operation. USPS also requires mailboxes to meet ADA and FHA reach ranges. The ADA requires that at least five percent of the mailboxes fit within the ADA and FHA reach ranges, while the FHA requires compliance to match the proportion of covered dwellings. This requirement is the result of DOJ lawsuits that required mailboxes to be accessible to all individuals.

In addition to the Americans With Disabilities Act and the Fair Housing Act, residential mailboxes must also comply with ADA requirements. In the case of wall-mounted mailboxes, the door slot must be at least 1.5 inches wide and seven inches long. The mailbox may be installed vertically or horizontally. It must be positioned at least 30 inches above the floor. Moreover, the mail slot must be accessed through a flap.

The height and width of the mailbox should comply with the ADA regulations. Mailboxes must comply with the height and width of the mailbox and should also have a minimum depth of fifteen inches. Mailboxes must also comply with the height requirements set by the USPS. The mailbox should also meet the USPS-STD-4C requirements. These guidelines will also apply to parcel lockers.

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Himanshu Shah is the chief marketing officer at MyDecorative.Com, and he is also a young enthusiastic writer who is gumptious and talented. He has sound analytical and technical skills. He is a blogger, Digital Marketing Expert who likes to write on home decor.


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