Information on this page was supplied by paperfolding designer and author David Mitchell. More detailed information on specialist aspects of origami can be accessed at www.origamiheaven.com
There aren't any. Origami doesn't have rules, but it does have ethics.
Origami ethics are the design/realisation standards within which individual paperfolding designers and craft paperfolders may (or may not) choose to work and ideals to which they may (or may not) aspire.
The point of origami ethics is to preserve the degree of challenge that origami design and realisation offers, just as, for instance, the point of rock-climbing ethics is to preserve the degree of challenge that climbing a rock-face offers.
Origami ethics relate to such questions as