CAPS (Certified Aging in Place Specialist) is an NAHB designation for contractors, designers, and healthcare professionals trained in aging-in-place design. The CAPS curriculum covers human factors of aging (the functional limitations that occur as people age and how they affect daily activities), design solutions for those limitations, and the business of aging-in-place remodeling. CAPS is not a licensing requirement — but it indicates that the professional understands the specific intersection of human aging, functional limitation, and residential design that aging-in-place work requires. CAPS practitioners use specific dimensional references (NKBA grab bar heights at 33–36″ toilet, 38–48″ shower; 17–19″ comfort-height toilet; DCOF ≥ 0.42 wet flooring) that go beyond generic accessibility awareness.