California Fire and Rescue Mutual Aid System Agency Emergency Apparatus. A-29 Engines and tactical water tenders shall be reimbursed in accordance with the current FEMA Schedule of Equipment Rates established in the Annual Rate Letter. Engines and tactical water Tenders rates are based on a 16-hour maximum allowable charge, per 24-hour period. Reimbursement of other emergency response equipment shall be in accordance with 44 CFR 206.228 allowable costs.