Don't believe this has been covered yet, but here are some of the key provisions to the marijuana law in Washington state:

1) Anyone over 21 can possess up to an ounce. In addition, there will be no charges for use of drug paraphernalia.
2) Marijuana cannot be displayed or used in public, and producers, processors, distributors, or advertisements cannot be located within 1,000 feet of public locations where children might be present.
3) Licenses would be required to sell, process or grow marijuana. Licenses would cost $250 with an annual $1,000 renewal fee.
4) By Dec. 1, 2013, the state LCB must establish procedures regulating the sale of marijuana in the sate, and will be a business regulating authority
5) A 25% tax will apply to each level of production and distribution. State and local sales taxes will also apply to retail sales.
6) A fixed amount of money raised from taxes will go to administration of the measure, youth substance abuse surveying, cost-benefit analysis of the measure and public health materials about marijuana use.
7) Of the remaining money, 50% will go to the state basic health plan, 15% to subsatnce abuse reduction and prevention programs, 10% for marijuana specific public health info, 5% for other health services, 1% for research into effects of marijuana use, .75% to program to prevent high school dropouts, The remaining 18.25% will go to the state general fund.

Hope this helps!