1.1 CATEGORIES OF DISABLED PERSONS. The categories of disability dictate the varied measures to be adopted in order to create an accessible environment for the handicapped. Disabled persons under these Rules may be classified into those who have: 1.1.1 Impairments requiring confinement to wheelchairs; or 1.1.2 Impairments causing difficulty or insecurity in walking or climbing stairs or requiring the use of braces, crutches or other artificial supports; or impairments caused by amputation, arthritis, spastic conditions or pulmonary, cardiac or other ills rendering individuals semi-ambulatory; or 1.1.3 Total or partial impairments of hearing or sight causing insecurity or like hood of exposure to danger in public places; or 1.1.4 Impairments due to conditions of aging and in coordination; 1.1.5 Mental impairments whether acquired or congenital in nature. 1.2 ANTHROPOMETRICS AND DIMENSIONAL DATA AS GUIDES FOR DESIGN. The minimum and maximum dimensions for spaces in the built environment should consider the following criteria: 1.2.1 The varying sizes and statures of persons of both sexes, their reaches and their lines of sight at both the standing and sitting positions. 1.2.2 The dimensional data of the technical aids of disabled persons. Included in the second consideration are the dimensions of wheelchairs; the minimum spaces needed for locking and unlocking leg braces plus the range of the distance of crutches and other walking aids from persons using such devices. By applying at this very early stage dimensional criteria which take into account wheelchair usage, the physical environment will ultimately encouraged and enable wheelchair users to make full use of their physical surroundings. 1.2.3 The provision of adequate space for wheelchair maneuvering generally insures adequate space for disabled persons equipped with other technical aids or accompanied by assistants. In determining the minimum dimensions for furniture and fixtures accessible to disabled persons, the following anthropometrics data shall serve as guides for design: The length of wheelchairs varies from 1.10 m to 1.30 m . The width of wheelchairs is from 0.60 m to 0.75 m. A circle of 1.50 m in diameter is a suitable guide in the planning of wheelchair turning spaces. The comfortable reach of persons confined to wheelchairs is from 0.70 m to 1.20 m above the floor and not less than 0.40 m from room corners. The comfortable clearance for knee and leg space under tables for wheelchair users is 0.70 m. Counter height shall be placed at a level comfortable to disabled persons’ reach. 1.3 BASIC PHYSICAL PLANNING REQUIREMENTS. No group of people shall be deprived of full participation and enjoyment of the environment or be made unequal with the rest due to any disability. In order to achieve this goal adopted by the United Nations, certain basic principles shall be applied: 1.3.1 ACCESSIBILITY. The built environment shall be designed so that it shall be accessible to all people. This means that no criteria shall impede the use of facilities by either the handicapped or nondisabled citizens. 1.3.2 REACHABILITY. Provisions shall be adapted and introduced to the physical environment so that as many places or buildings as possible can be reached by all. 1.3.3 USABILITY. The built environment shall be designed so that all persons, whether they be disabled or not, may use and enjoy it. 1.3.4 ORIENTATION. Finding a person’s way inside and outside of a building or open space shall be made easy for everyone. 1.3.5 SAFETY. Designing for safety insures that people shall be able to move about with less hazards to life and health. 1.3.6 WORK ABILITY AND EFFICIENCY. The built environment shall be designed to allow the disabled citizens to participate and contribute to developmental goals RULE III – SPECIFIC REQUIREMENTS FOR BUILDINGS AND RELATED STRUCTURES FOR PUBLIC USE 1. CLASSIFICATION OF BUILDING BY USE OF OCCUPANCY: 1.1 Occupancy classified by categories enumerated in Section 710 of the National Building Code (PD 1096) are hereby adapted 1.1.1 Category I – Residential – This shall comprise Group A and partly Group b Buildings 1.1.2 Category II – Commercial and Industrial – This shall comprise partly Groups B, C, E, F, G, H, AND I Buildings