Similar International Standards
2010 ADA Standards for Accessible DesignU.S. Access Board / Department of Justice, USA
HighCurrent
2010 ADA Standards for Accessible Design
Comprehensive design requirements for accessibility in public accommodations and commercial facilities, similar to the scope of IS 15993.
BS 8300-1:2018 & BS 8300-2:2018BSI (British Standards Institution), UK
HighCurrent
Design of an accessible and inclusive built environment – Part 1: External environment – Code of practice; Part 2: Buildings – Code of practice
Provides recommendations for the design and construction of new buildings and adaptation of existing ones for an accessible and inclusive environment.
ISO 21542:2021ISO (International Organization for Standardization), International
HighCurrent
Building construction — Accessibility and usability of the built environment — Means of providing accessibility to persons with disabilities
Specifies requirements and recommendations for accessibility and usability to the built environment for all people, particularly persons with disabilities globally.
AS 1428.1-2009Standards Australia, Australia
MediumCurrent
Design for access and mobility - Part 1: General requirements for access - New building work
Sets out minimum requirements for new building work to provide access for people with disabilities, focusing on general access elements.
Key Differences
≠While IS 15993 focuses primarily on minimum requirements for persons with disabilities, international standards like BS 8300 and ISO 21542 increasingly adopt a broader 'universal design' approach, aiming for environments usable by all people, regardless of age, size, or ability.
≠Specific dimensional requirements for certain elements, such as maximum ramp gradients and minimum clear widths for doorways, can vary. IS 15993 often has slightly different values compared to ADA or BS 8300.
≠The prescriptive detail for tactile ground surface indicators (TGSI) varies. While IS 15993 specifies guidance and warning strips, the exact dimensions, patterns, and placement depth can differ from standards like BS 8300 or ADA which have more specific requirements for blister or truncated dome sizes and depths.
≠Accessible toilet layouts and fixture clearances show variations, particularly regarding the exact placement of grab bars, toilet paper dispensers, and washbasins relative to the toilet, to optimize maneuverability.
≠Requirements for signage, including font size, contrast ratios, mounting height, and the inclusion of Braille or tactile characters, often have distinct specifications between IS 15993 and international counterparts like ADA.
Key Similarities
≈All standards share the fundamental objective of ensuring that the built environment is accessible and usable by persons with various disabilities, promoting inclusion and equal participation.
≈They cover similar categories of built environment elements, including but not limited to, access routes, ramps, staircases, doorways, lifts, sanitary facilities, parking, and signage.
≈There is a common emphasis on safety, incorporating features such as non-slip surfaces, appropriate lighting, clear pathways, and robust handrails to prevent accidents and facilitate safe movement.
≈All standards address the needs of individuals with mobility impairments (e.g., wheelchair users), visual impairments (e.g., through tactile indicators and high contrast), and hearing impairments (e.g., through visual alarms).
≈The principle of providing minimum clear dimensions for circulation spaces, turning radii, and functional areas within accessible spaces is consistently applied across all codes.