Accessibility & Detectable Warning Systems: Complying with Current Government Guidelines
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A detectable warning surface is a surface feature designed to warn the visually impaired of hazards on a circulation path. Both the ADA accessibility guidelines and State of California regulations require detectable warning surfaces at a number of public right-of-way locations. This course looks at current guidelines and regulations for detectable warning surfaces, types of surfaces, and methods of implementing these regulations.
Upon completion of this course, the Learner should be able to:
- Recall the importance of detectable warning systems for providing accessibility.
- Recall current ADA accessibility guidelines regarding detectable warning surfaces.
- Recall current state of California regulations regarding detectable warning surfaces.
- Identify the relevant governing bodies and their applicable enforcement responsibilities.
- Describe characteristics and applications of various truncated dome warning systems.
Approximately 1 hour. Delivered online, at your own pace.
Presented by John Heffner on behalf of Engineered Plastics Inc.. View the Privacy Policy .
Presenter Information

Name: John Heffner
Title: Vice President of Sales and Marketing, Engineered Plastics
Background: John Heffner is the Vice President of Sales and Marketing for Armor-Tile Tactile Systems. He has a formal construction engineering education along with 15 years of hands-on experience. John travels extensively throughout North America consulting with architects, government agencies, and city engineers regarding ADA compliance requirements and field applications. In addition, John also provides in-person education and training sessions for distributors, and performs on-site training for inspectors.