The state is faced with the challenging task of trying to govern a vast, emerging cannabis industry with a projected value of $7 billion. Hezekiah Allen, president of the California Growers Association, an industry group, called the draft rules "a major step toward a well-regulated cannabis industry." There have been questions about how the state could quickly review and issue licenses for tens of thousands of growers, sellers, manufacturers and distributors after the regulations for medical and recreational marijuana kick in next January. [...] the banking dilemma remains unresolved. Because marijuana remains illegal on the federal level, many dispensaries and growers are in effect locked out of the banking industry, so much of the business is conducted in cash.