SAN FRANCISCO (AP) — San Francisco's public transit board has voted to ban marijuana advertising on its buses, trains and shelters, reversing its current policy.

The San Francisco Examiner reports the board of the San Francisco Municipal Transportation Agency voted Tuesday to prohibit pot advertising in advance of Jan. 1, when recreational weed becomes legal in California.

There are currently 130 ads for medicinal marijuana on transit agency property from companies such as Eaze, Urban Pharm and Green Cross.

San Francisco Mayor Ed Lee was among those urging a ban on weed advertising, saying such a rule would limit children's exposure to products meant for adults.

The agency says it will run marijuana ads that have already been purchased.

The agency, known as MUNI, also bans advertising for alcohol and tobacco products.

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Information from: The San Francisco Examiner, http://www.sfexaminer.com