Construction Area Authorized Only Sign

Construction Area Authorized Only Sign
Item #
Sign Reads
Warning Construction Area. Authorized Personnel Only.
Sign Design
International No Access For Unauthorized Persons Symbol
English. Also available in Bilingual (English/Spanish) or Spanish.
  • ANSI Z535 / OSHA
  • OSHA 1910.1200(c)
  • Shipping Declarations

Other configurations of this product are ECCN Certification and LEED Compliant.


Read about the EG Reflective change from 3M EGP Reflective to 3M Advanced Flexible Engineer Grade 7310.






Price: $11.25
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Need a quote for a large order? Call 800−274−6271 or email us.

A Construction Area Authorized Only Sign has official ANSI headers for safety protocol and compliance. A Construction Area Authorized Only Sign is a helpful resource to help protect the health and safety of personnel, and is not a substitute for required protective measures for reducing or eliminating hazards.

Product Information


Choosing the right safety signs for your construction site can make all the difference when it comes to keeping your workers safe. Which of these signs is the best option?

Construction signs

Although each of these will keep you in compliance with OSHA regulations, C is the best choice. Here's why:

Choose the Best Standard

All four signs are OSHA approved, with A representing the common OSHA Style that many of us are used to seeing. B, C, and D represent the latest ANSI Style sign, designed to better communicate hazards and how to avoid them.

OSHA and ANSI choices

Signal words
ANSI Z535.2-2011 Warning sign

Choose the Right Signal Word

The "Warning" signal word from C identifies a hazardous situation that if not avoided, could result in severe injury or death. This is the preferred signal word for describing the hazards at a construction site because serious injury or death could occur from trespassing, but trespassing onto the work site does not mean an injury will occur, as a Danger sign would imply.


The ANSI Z535.2-2011 Warning sign C represents the best choice for most construction areas because it clearly defines the hazards in question, the seriousness of the hazards in the specific area, is designed to be read quickly, and adds a graphical element that makes the sign easier to understand.

Learn more about standards and signal words » does not recommend or specify the use of a specific safety sign because it does not have knowledge of the hazard(s) our customers are identifying. It is the customer’s sole responsibility to identify the hazard(s) that may be present and select one or more signs (stock or custom) that accurately identify their specific hazard(s) and complies with any applicable federal, state or local laws or regulations, any worksite specific rules or regulations and/or any applicable safety standards (including, without limitation, ANSI and/or OSHA standards). disclaims any and all liability (excluding liability for our Product Warranty contained in our Terms and Conditions) for any sign selected by a customer and shall not be responsible for any personal injury or property damage resulting from the use of signs purchased from it or for the independent interpretation made of any applicable federal, state or local laws or regulations, any worksite specific rules or regulations, and/or any applicable safety standards (including, without limitation, ANSI and/or OSHA standards). Customer shall indemnify and hold and its corporate parent and its officers, directors and affiliates harmless from and against any and all claims, loss or expense (including attorneys’ fees) arising from or related to the purchase and use by customer or any third party of any sign purchased by customer from



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