Accounting Information Systems: Essential Concepts and Applications Fourth Edition by Wilkinson, Cerullo, Raval, and Wong-On-Wing Chapter 12: The Revenue Cycle Introduction Revenue Cycles tend to be similar for all types of firms.
When diving from a boat, a dive team need not carry its own dive flag provided that it stays within a predefined proximity of the dive boat. When shore diving at sites where watercraft traffic is a possibility, divers should float their own dive flag on the surface, and stay within a few hundred feet of the flag.
For the recreational diver on air, that limit is 130 feet. For the helmet air supplied commercial diver, it is probably 200 feet. For the mixed gas helmet diver, it is probably 300 feet with a bell-bounce diver going to 600 feet for short durations. For the mixed gas saturation diver, perhaps 2,000 feet.