- ATTENTION -
This information is only a guideline for outdoor advertising and is not
intended to be inclusive of all applicable laws. Sign applicants and owners
are responsible for knowing the laws and ordinances that control signage. If
there is a conflict between this information and any federal, state, or local
laws or ordinances, the laws or ordinances will prevail.
Please call ITD If you have questions.

Why is the Idaho Transportation Department involved with outdoor advertising?
As part of the Highway Beautification Act (also known as the Lady Bird
Johnson Act), federal law requires all states to provide continuing,
effective control of outdoor advertising (Title 23, U.S. Code, Section 131).
Failure to comply may result in a 10 percent reduction in Idaho´s Federal
Highway funds.
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Is there anything I need to do before erecting a sign?
Yes. Before you erect a sign adjacent to a controlled highway, you need to apply for and obtain a
permit from the Idaho Transportation Department.
You can get an application form from an outdoor advertising representative at one of the
district offices listed below, or CLICK HERE to download one, and
CLICK HERE for instructions.
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How do I apply for a permit to erect a new sign?
First, clearly mark the proposed location of your sign with stakes so the site can be inspected by ITD. Then complete the
APPLICATION FORM and submit it to the ITD office in the district where the proposed sign will be located
(see office locations below). Make sure to include the following:
- A $10 non-refundable application fee
- Proof of local approval (if applicable), such as an approved building permit for the sign
- Zoning type and signature of local zoning authority
- The property owner´s signature and contact information. If you don´t have
the property owner´s signature, you may provide a copy of a lease for the
sign site. NOTE: Licensed sign companies are required to provide a copy of
a lease from the property owner that includes signatures and a termination
date.
- A site plan, which is a sketch of the proposed sign on the subject parcel
showing the sign´s proximity to structures, property lines (applicants are
responsible for establishing property lines), highways, overpasses,
interchanges, driveways, power lines, waterways, sidewalks, etc.
- A plan-view showing the sign configuration from all angles, including
from above. Make sure to include any illumination and cat walks.
- A copy of the last deed of record to confirm ownership of the property
where the proposed sign will be located.
ITD may ask you to provide additional information needed to process your
application. Processing time is approximately 30 days. The annual renewal
fee for sign permits is $3.
You will have 180 days from the permit issuance date to complete the
installation of your sign structure and sign face. ITD will inspect the sign
180 days from the permit issuance date to make sure the sign complies with
the information provided in your application.
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Where can I get an application form?
To get an Outdoor Advertising Sign Application form (ITD-1850), contact any
ITD office, or CLICK HERE to download a form, and
CLICK HERE for instructions.
District 1:
600 W. Prairie Avenue
Coeur d'Alene, ID 83815-8764
Phone: (208) 772-1215
Sign Agent: Yvonne Dingman
District 2:
2600 Frontage Road
P.O. Box 837
Lewiston, ID 83501-0837
Phone: (208) 799-4226
Sign Agent: Doug Freeman
District 3:
8150 Chinden Boulevard
P.O. Box 8028
Boise, ID 83707-2028
Phone: (208) 334-8343
Sign Agent: Lana Servatius
District 4:
216 S. Date Street,
Shoshone, ID 83352-0820
Phone: (208) 886-7839
Sign Agent: Deb Pierson
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District 5:
5151 South 5th Avenue
P.O. Box 4700
Pocatello, ID 83205-4700
Phone: (208) 239-3355
Sign Agent: Chuck Heisler
District 6:
206 North Yellowstone Ave.
P.O. Box 97
Rigby, ID 83442-0097
Phone: (208) 745-5625
Sign Agent: Anthony Black
Idaho Transportation Department
Right of Way Headquarters Office
3311 W. State Street
Boise, ID 83707
(208) 334-8503
(800) 745-2752
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Can I put a sign on my own property?
If your property borders a controlled highway, you will need to contact an
ITD office because there are some state restrictions, however,
an ITD permit is not required. Your sign must also comply with city or
county sign ordinances.
If your local government approves your sign, the state of Idaho allows:

- On-premise signs advertising activities conducted on the property where
the sign is located (including subdivision signs and real-estate signs).
There can only be one sign visible to traffic proceeding in any one
direction (see diagram above).
- "For Sale" signs on the property advertised for sale.
Please check with an ITD office to make sure your sign fits in
one of the above categories.
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Can I put a sign on someone else´s property?
You can put a sign for your business on someone else´s property along a
state highway. This is called outdoor advertising.
- The sign must have an ITD permit.
- The sign must follow local ordinances and, if required, you must have a local permit.
- The sign site must be on commercial or industrial-zoned property.
- You must have the property owner´s permission.
- There must be a visible, licensed business or industry that has been in operation for at least six months on the property.
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Where can I put a property-for-sale sign?
If you are a realtor or the owner of property along a state highway you can
put one sign visible to each direction of travel on the property. A permit
is not required.
Placing a property-for-sale sign on someone else´s property along a state
highway is considered outdoor advertising and is subject to the following:
- You must get a permit prior to placing the sign on the property.
- Access to the sign cannot be solely from the state highway right-of-way.
- Property-for-sale signs are not allowed in the state highway right-of-way.
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What kind of signs are available to public agencies, churches, and service clubs?
There are several options available to public agencies and non-profit organizations:
- Directional signs pertaining to public places owned or operated by
federal, state, or local governments, or their agents; publicly and
privately owned natural phenomena, historical, cultural, scientific,
educational, or religious sites; and areas of natural scenic beauty or areas
naturally suited for outdoor recreation deemed to be in the interest of the
traveling public. Directional signs must have a maximum area of 150 square
feet, a maximum height of 20 feet, and a maximum length of 20 feet
- Non-commercial signs such as "Welcome to . . ." community signs. Welcome
signs cannot exceed 300 square feet. Only one welcome sign will be allowed
for each route entering a community.
- The following signs cannot be larger than eight square feet, but still
require a permit from the Idaho Transportation Department:
- service club signs
- church or other religious signs
- charitable association signs.
- Directional signs relating to communities that have been bypassed by a
highway. These signs must be located within five miles of the bypassed
community.
 This is an example of a bypassed community sign.
Public agencies are required to obtain an ITD permit. Contact your local ITD
office for specific information regarding the location, size, spacing, and message content.
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Where can we put a sign for our subdivision or development?
Subdivision entryway signs along state highways are considered outdoor
advertising and must be located within the subdivision boundaries and cannot
be placed within the highway right-of-way.
If you want to place a sign along a state highway to advertise or inform the
traveling public that your subdivision is located nearby, you must obtain an
ITD permit prior to placing the sign along the highway.
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Where are outdoor advertising signs prohibited?
There are certain areas where signs are prohibited by law. The following is
a partial listing of some of the areas signs are not allowed, such as:
- Along scenic byways, which are specially designated highways protected
for their scenic or historic value. Existing signs are allowed to remain
along scenic byways, but new signs may not be erected.
- In the right-of-way of any highway.
- Within a stream or drainage canal.
- In any location that hinders the clear, unobstructed view of approaching
or merging traffic, or obscures from view any traffic sign or other official sign.
- In any location that obscures the view of any connecting highway orintersection.
Signs may also be prohibited if they are visible from interstate or primary
highways and are:
- Not maintained in safe condition.
- Not clear or in good repair.
- Painted, affixed, or attached to any natural feature (rock, tree, etc.)
- Simulating or imitating any directional, warning, danger, or information sign.
- Intended or likely to be construed as giving traffic warnings.
- Illuminated or positioned in a way that interferes or obscures an official traffic sign, signal, or device.
- Displaying any red, blue, or blinking light likely to be mistaken for a
warning or danger signal, or any light that may blind or distract drivers.
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What restrictions apply to outdoor advertising?
Outdoor advertising signs placed along state highways:
- Can be no larger than 1,000 square feet. (A 48-foot by 14-foot sign is 672 square feet.)
- Can have a sign face no more than 30-feet high and no wider than 50 feet.
This includes the border, trim, cutouts, and extensions, but does not
include supports and decorative bases.
- Must be at least 500 feet from other signs along interstate highways.
- Must be at least 250 feet from other signs along primary highways outside of urban areas. Additional restrictions may apply.
- Must be at least 100 feet from other signs along primary highways within urban areas.
- May not be located adjacent to a highway and within 500 feet of the following:
- public parks, public forests, and public playgrounds
- scenic areas designated as such by ITD or other state agency
- railroad overpasses
- the point of pavement widening at the entrance or exit to a port-of-entry weight-checking station, or port of entry or other state-operated facility for motorists
- highway grade separations structures, where the highway passes beneath a railroad or highway and there is no traffic connection between the highways
- May not be located within 1,000 feet of an interchange or rest area.
- May not be located within the actual interchange area, defined as
commencing or ending at the beginning of pavement widening at the exit or
entrance to the main traveled way of the freeway. Note: existing permitted
signs are allowed but are classified as non-conforming signs.
- May not be located within 100 feet of the right-of-way line of the
intersecting road where intersections are more than 500 feet apart, unless
buildings or structures control cross vision. In such cases, advertising
signs may be allowed up to and on top of the intervening structures.
- May not be located within 50 feet of the right-of-way line of an
intersecting road where intersections are 500 feet or less apart. However, to assure visibility under the signs, the
bottom edge of all signs (excluding posts) that are between 50 and 100 feet from an intersecting road´s right-of-way line must be at least 14 feet above
the travel surface of the road.
- If electronic, must display a static image for a minimum of eight seconds, and have a dwell time of two seconds or less. Electronic sign faces
must be at least 5,000 feet apart on interstates, at least 1,000 feet apart on primary highways in urban areas, and at least 5,000 feet apart on primary
highways outside of urban areas.
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Distances between and from signs are measured horizontally along the
pavement edge nearest the signs. Distances are measured from the point of
the sign nearest to the highway.

Alleys, undeveloped rights-of-way, private roads, and private driveways do
not qualify as intersecting streets, roads, or highways.
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Are there alternatives to outdoor advertising signs?
Yes. There are two alternatives:
- Logo signs are available to eligible business activities such as gas,
food, lodging, camping, and other attractions at eligible interchanges on
the interstate system. See example below. LOGOS Contact Info.
- Tourist Oriented Directional Signs are available along the state highway
system to provide directional information to tourist-oriented businesses,
seasonal agricultural products, services, and attractions that cannot be
seen from the highway (see examples below). Tourist Oriented Directional
Signs are not allowed along interstate highways. TODS Contact Info.
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What laws and rules govern outdoor advertising on controlled routes?
In addition to the information provided in this handbook, advertisers should
acquaint themselves with the following laws and rules that apply to outdoor
advertising in the State of Idaho.
- Title 23, U.S. Code, Section 131
- Title 23, Code of Federal Regulations, Part 750
- Title 40, Chapter 19, Idaho Code
- IDAPA Rule 39.03.60, Rules Governing Outdoor Advertising
- IDAPA Rule 39.03.61, Rules Governing Directional and Official Signs and Notices
- IDAPA Rule 39.03.62, Rules Governing Logo Signs
- IDAPA Rule 39.03.64, Rules Governing Tourist Oriented Directional Signs (TODS)
- IDAPA Rule 39.03.40 - Rules Governing Junkyards and Dumps
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