The only regulation needed is that if one 'advertises' seasoned wood, then the moisture content must be at or less than a predetermined number, say 20%. This is the same as saying a cord of wood must be 128 cu ft.
Agree 100%. I would suggest since "seasoned" is already an abused and meaningless word, that the legal standard (at or less than 20%?) go by a different name, such as "Ready-To-Burn" or a similar designation that would be used exclusively for wood meeting the legal requirements. Otherwise the claim of ignorance -- "I didn't know what 'seasoned' meant" -- will be never-ending.
It would be futile to expect significant change to come from wood sellers at large... they are largely responding to the consumer demand for the cheapest wood, which means the greenest, and which puts pressure on them to cut costs (if not corners). But change would be helped by the smaller subset of proactive wood sellers who understand and promote the benefits of properly seasoned wood, and advise their customers to either pay a premium for pre-seasoned wood or to always buy at least a year ahead if buying green.
The best "push" would come from stove manufacturers and stove dealers. Stove makers already discuss the importance of dry wood in the owners' manuals, but in such a way that it's hidden among seemingly more important info and is easily missed or ignored by many consumers. In a previous thread I recommended that manufacturers go so far as to suggest the warranty may be void if the stove owner burns green wood. This does not mean manufacturers actually refuse to honor the warranty based on such a suspicion (unprovable, in any event)... it simply means greater awareness is brought to the consumer, because he suddenly see dollar signs on the other side of the ledger when weighing the (false) savings of burning subpar wood. It's not that far off from telling them not to burn garbage in the stove or to overfire it.
Stove dealers can point out to their customers this "official" warranty requirement to burn dry wood, and help their customers by advising which local wood sellers supply "Ready-To-Burn" wood, or by advising to get a year ahead if buying green or cutting one's own wood. This initial effort by the dealer, if properly and consistently stressed, also greatly reduces the odds of getting "my stove doesn't work" complaints by users of green wood.
For a company like Englander that sells largely in box stores with lesser customer service, the number one move would be to format brochures and promotional material so that the importance of burning dry wood -- strictly from a performance and heat-output standpoint, if not the suggested warranty standpoint -- is emphasized much more prominently, rather than buried offhand in a few sentences of fine print among the dozens of pages of a typical owners manual.
Old-timers, or owners of smoke dragons, or stubborn fools, are not going to be educated or swayed from their habits of burning freshly split oak, but the newer generation of wood-burners CAN be educated, and the best source of sparking that education would be at the consumer-retailer interface, with the resources and leverage of stove manufacturers as a driving force.