Boston could join New York, San Francisco and Seattle in banning city-funded travel to North Carolina following that's state's passage of a law that, among other things, dictates what public bathrooms transgender people can use, if City Councilor Josh Zakim has his way.

Zakim filed an ordinance Monday that would prohibit City Hall-funded travel to North Carolina, excepting emergency situations.

The North Carolina law forces transgender people to use public bathrooms intended for the gender indicated on their birth certificates, and stops local governments from passing antidiscrimination laws.

Zakim's ordinance says the North Carolina law "officially sanctioning discrimination against transgender community." Zakim calls for the travel ban, saying "The city of Boston prides itself as a place where discrimination is not tolerated and where we lead on issues of LGBTQ equality," and "has a duty to promote social justice and combat social oppression whenever able."

Technology companies like Apple and Facebook, as well as the NBA, have criticized the North Carolina law.