MIAMI  Teresa Aral, a travel agent in South Florida, was greatly relieved after learning she did not have to pay the state a quarter of a million dollars to keep booking trips to Cuba. For now, at least.

Ms. Aral, along with 15 other agents providing charter flights to Cuba, filed a lawsuit in Miami against the State of Florida, challenging a new law requiring them to post a one-time $250,000 bond and disclose the names of clients in order to continue their business with Cuba. But earlier this month, a federal judge temporarily lifted the measure while he considered its legality.

“I’m very grateful that at least the judicial branch of government here is still working,” Ms. Aral said after the ruling.

Cuban-Americans are allowed to visit the island every three years and must obtain visas through the federal government.