It does not help having every person putting their interpretations into the discussion. Citing the different codes put forth by the pyro associations, it gets confusing. There are really several different codes that apply to rockets of all types, and those can vary from country to country. In general, the rules are very close to what is established in the United States, so I will discuss that in the most detail:
1) National Fire Protection Association (NFPA) Safety Code. NFPA code 1122 refers specifically to Model Rocketry; NFPA code 1127 covers High Power Rocketry. For information on the NFPA and to see codes 1122 and 1127 go to http://www.nfpa.org
2) The Federal Aviation Administration (FAA) regulates air space which effects most rocketry activities. Model Rockets enjoy relief from FAA regulations via Federal Aviation Regulations Part 101; see FAR101 at http://www.access.gpo.gov
3) Tripoli Rocket Association (TRA) is a group established to promote rocketry, and they wrote own rules and regulations for competition and certification which are designed to comply with the NFPA and FAA regulations above.
4) National Association of Rocketry (NAR) is a another group established to promote rocketry, who wrote their own rules and regulations for competition and certification which are designed to comply with the NFPA and FAA regulations above.
5) Water Rocket Achievement World Record Association (WRA2) is a group established to promote a specific type of rockets (Water Rockets), who also wrote their own rules for competition, which were designed to comply with the NFPA and FAA regulations above. The NAR and Tripoli guidelines were used as a template and were modified to apply to water rockets specifically.
I want to stress that #1 and #2 on the list above supersede all of the rules below them on the list, because these are the Government Regulations that are enforced by the law. The TRA, NAR, and WRA2 rules were written to be within the confines and restrictions of the FAA and NFPA laws.
What I see here is different people mixing up and citing different rules of all of these groups, either intentionally to cause confusion or disruption, or out of ignorance or repeating bad information they received.
When you participate in a WRA2 competition launch, you MUST comply with the rules the WRA2 prescribes. just as you MUST comply with the rules set forth by the NAR and TRA at their respective launches. You CANNOT go to a NAR launch and violate their rules because you are a TRA member and the rules differ slightly. just as you CANNOT launch in a WRA2 competition and try and gain an advantage by applying the rules from NAR or TRA.
Important: If you decide to skip NAR, TRA, WRA2 membership as NickB suggested, you can do that if you understand the following:
1) Your accomplishments will not be recognized by NAR, TRA, or WRA2.
2) Your rockets MUST still comply with the FAA and NFPA regulations, otherwise you are breaking the law.
So, on this forum, when someone provides advice to someone on how to make their rocket compliant with the rules, this is not an invitation for trolls to challenge the rules which they find hard to comply with, or try and confuse the issue by citing the rules of organizations that do not conform to the WRA2 rules. This is the WRA2 forum, and we follow their rules here.
This DOES NOT preclude people from discussions about non compliant designs ON this forum. We just ask that you make it clear that you may be talking about something that is not complaint with the rules, so as not to give the impression that the non compliant topic is actually compliant. Don't be mad or surprised if another member or an administrator adds a reminder if you forget.
The WRA2 rules were established for both fairness and safety. We want to encourage people to follow them to be safe and fair and also be law abiding citizens.
One last thing: if we see people discussing topics which are clearly illegal or violations of the NFPA or FAA regulations, we insist that it be made clear that this not a legal activity, and is not recommended, condoned, or otherwise legal. In other words, don't pretend what you're doing is not against the law because you are doing it on your own and not as part of an association, or in your backyard and laws don't apply to you on your own property, and don't encourage people to copy you by showing them how to break the law or linking to external webpages or media containing instructions for lawbreaking. Such posts will be edited or deleted at the discretion of the moderators. You may also have your forum rights restricted if you do not follow these instructions.
Thanks for your attention.
edit: after writing this I realize it sounds like I am talking to Bill when I say "you" all the time, but what I meant was to address people in general on the forum. I don't want Bill to think I am saying he is doing any of these things.