Consumers enjoy first puffs of recreational marijuana from licensed retailers in Colo.

Sean Azzariti of Denver made the first purchase of recreational marijuana under the new law at 3D Cannabis Center in Denver. Photo by RJ Sangosti/The Denver Post via Getty Images

It’s a new day in Colorado; 2014 kicked off with customers lining up across the state to buy marijuana at licensed retailers. Although Coloradans voted to pass a law legalizing marijuana in November, Jan. 1 marked the starting date for state approved venders to sell marijuana for recreational use.

The new industry comes with new regulations. Residents of Colorado are allowed to purchase up to 1 once of pot, whereas visitors are limited to a quarter of an ounce. All buyers must be over 21 years of age and the purchased product cannot be transported across state lines.

Recently, Denver International Airport announced it would outlaw marijuana possession on its grounds to avoid conflict with the federal law that prohibits possession of the drug.

To cover the news and culture surrounding the new law and marijuana culture, the Denver Post launched the blog The Cannabist. On Wednesday, the staff will be live blogging as recreational marijuana shops open for business across the state.

Tune in to the NewsHour Wednesday night for an update on the rollout of the new law.