No trips longer than 8 days and they can only do those 3 times a year. Normally 4 to 7 day trips spread around the month. 3 days off minimum for any trip less than 7 days. 4 days off min for a 7 day trip and 5 min off for an 8 day trip. There is no typical it varies wildly with the needs of the company. Your schedule is published by the 15th of the month prior and can not be changed.