My understanding is that the operators in this sector believe their vessels must meet certain seaworthiness requirements, and they have a vested interest in maintaining that. But they're also operators who are engaged in an inherently risky activity at one level. There is a series of classifications of the rivers that they run. But the participants in this are aware of that. They take the steps that they think are reasonable.
If we were to impose on them extremely onerous and high insurance liability requirements, essentially they wouldn't be in business. If they had followed the changes that were introduced in 2001 to the letter of the law, it would have put most of them out of business. So in practice, I think, many of them continued with the policy of having a participant sign the waiver.
This is the problem with these smaller types of operations whose revenues aren't that huge but that still want to cater to a market of people who want to have these experiences.