Question:
What does the term "TSO" mean?

Answer:
TSO is an FAA (Federal Aviation Administration) acronym for "Technical Standard Order".

Question:
What is the difference between a Type I and a Type II life raft?

Answer: 
4.2.1 Type I Liferaft. Buoyancy must be provided by two independent buoyancy tubes each of which, including the raft floor, must be capable of supporting the rated and overload capacities in fresh water if the other tube is deflated. The liferaft loaded to its rated capacity must have a freeboard of at least 12 inches with both buoyancy tubes at minimum operating pressure. The liferaft loaded to its rated capacity with the critical tube deflated and the remaining tube at minimum operating pressure must have a freeboard of at least 6 inches. The liferaft loaded to its overload capacity with the critical tube deflated must have a measurable freeboard.
   
4.2.2 Type II Liferaft. When single tube construction is used to provide the buoyancy, internal bulkheads must divide the flotation tube into at least two separate chambers such that the liferaft will be capable of supporting the rated number of occupants out of fresh water in the event that one chamber is deflated. The complete liferaft loaded to its rated capacity must have a freeboard of at least 6 inches.

Question:
Where can I get a copy of TSO-C70a?

Answer: 
<a href="http://www.aaasurvivalproducts.com/includes/templates/aaas/uploads/C70a.pdf">TSO C70a Please Click Here</a>