3.3 Emergency Response The safety case must describe how the following requirements are achieved Appropriate means of alerting persons to an emergency Multiple communication channels with any external body whose assistance is required to manage the emergency For an offshore Facility, totally enclosed motor propelled survival craft (TEMPSC) for at least the maximum number of persons onboard to allow a means of evacuation For an offshore Facility, sufficient liferaft capacity for at least the maximum POB; Provision to allow persons to safely muster in an emergency Adequate communication between muster points on a Facility Multiple escape routes to muster points from all normally manned areas of petroleum infrastructure For an offshore Facility, multiple escape routes from muster points to embarkation points For an onshore Facility, an escape route from each muster point to a safe boundary exit point On an offshore Facility, a safe refuge with adequate protection to allow persons to muster, assess the emergency situation, communicate within the Facility and to external bodies, control the emergency as far as possible and manage an appropriate response and Suitable personal protection equipment inappropriate locations for the hazardous conditions that maybe encountered in an emergency situation.