048-4 Wyo. Code R. § 4-7
For the purpose of these Rules and Regulations the following patient classification definitions shall be used:
(a) "Emergent" means the patient requires immediate transport and treatment to prevent death or permanent disability.
(b) "Urgent" means there is a serious illness or injury to the patient which could expose the patient to risk of death or permanent disability unless treatment is initiated at a medical facility within a reasonable length of time.
(c) "Non-emergent" means a patient who has an injury or illness that is presently stable, which poses no present threat to life or risk of permanent disability, and does not require the use of emergency vehicle warning devices.
For patients who are classified as emergent or urgent, the use of emergency vehicle warning devices is appropriate.
048-4 Wyo. Code R. § 4-7