A special event expected to involve the presence of more than 25,000 persons at any one time shall require the use of onsite treatment facilities. The onsite treatment facilities shall provide:

1. (1) Environmental control, providing protection from weather elements to ensure patient safety and comfort.
2. (2) Sufficient beds, cots and equipment to provide for evaluation and treatment of at least four simultaneous patients.
3. (3) Adequate lighting and ventilation to allow for patient evaluation and treatment.