Each March, Developmental Disabilities Awareness Month offers an opportunity to recognize the contributions of people with developmental disabilities and to examine the barriers that can limit their full participation in society. The Administration for Community Living’s overview of Developmental Disabilities Awareness Month highlights this observance as a time to focus on inclusion and address barriers to meaningful participation.
Awareness matters, but inclusion takes action. It requires intentional decisions to create environments where more people can learn, work, and engage without unnecessary obstacles.
DDAM is led each year by the National Association of Councils on Developmental Disabilities (NACDD) and partners, with a focus on increasing inclusion and addressing barriers people still face in their communities.
The Centers for Disease Control and Prevention's definition of developmental disabilities describes them as a group of conditions associated with impairments in physical, learning, language, or behavior areas. These conditions begin during the developmental period, may impact day-to-day functioning, and usually last throughout a person’s lifetime.
You may see the term used differently depending on context, such as healthcare, education, or eligibility for services. In U.S. federal law, the Developmental Disabilities Assistance and Bill of Rights Act includes a definition with criteria such as onset before age 22 and substantial functional limitations. See 42 U.S. Code § 15002, “Definitions”.
Examples can include autism spectrum disorder, cerebral palsy, Down syndrome, and intellectual disability, among others. People’s experiences vary widely, and no single list captures them all.
Barriers to inclusion often appear in everyday places, including online.
Digital platforms that rely on complex navigation, dense text, or confusing interactions can exclude users who process information differently. Common issues include:
To evaluate web content, many organizations use the W3C Web Content Accessibility Guidelines (WCAG) 2.2, which include requirements that support consistency and predictability.
In physical spaces and service environments, barriers may include:
In workplaces and schools, rigid policies and assumptions about communication or productivity can limit opportunities for meaningful participation. Inclusion is stronger when teams plan for differences rather than reacting after someone is already struggling.
Accessibility helps remove barriers in digital, physical, and social environments. When organizations design with accessibility in mind from the start, they often create systems that work better for everyone.
Start with changes that reduce confusion and increase clarity:
If your organization is a U.S. federal agency (or builds certain information and communication technology for federal use), accessibility obligations may also apply under Section 508. See Section508.gov guidance on applicability and conformance.
Employment is one of the most important areas for breaking barriers. Inclusive hiring practices, accessible onboarding materials, and reasonable accommodations can help people with developmental disabilities contribute their skills and perspectives.
In the United States, Title I of the ADA may require employers to provide reasonable accommodations to qualified employees or applicants, unless doing so would cause undue hardship. Requirements depend on context, so treat this as general information, not legal advice. For an authoritative overview, see the EEOC’s enforcement guidance on reasonable accommodation and undue hardship and the ADA.gov guide to disability rights laws.
Community inclusion is equally important. Accessible public services, events, and digital resources help ensure that people with developmental disabilities can participate in civic life.
DDAM is a reminder that inclusion is an ongoing commitment. Organizations can take meaningful steps by evaluating accessibility, listening to people with disabilities, and embedding accessibility into policies, design processes, and training.
Breaking barriers does not require perfection. It requires progress, accountability, and a willingness to learn. By prioritizing accessibility, we move closer to a world where people with developmental disabilities are not simply accommodated, but fully included.
At Accessibility.com, we believe accessibility is a foundation for equity. This month and beyond, let’s keep building environments that support everyone’s ability to participate, contribute, and thrive.