Sick Bank Limits. The maximum number of sick days to be held in the bank shall not exceed The minimum number of sick days to be held in the bank shall not be less than 100 days. The maximum number of days that may be granted for a particular injury or illness is 225 days. The maximum number of days that may be granted to a custodian in his/her lifetime of service due to a long-term illness or injury shall not exceed 350 days.