Russia’s Aeroflot and Transaero Airlines are selling nonrefundable tickets, Russia news agency ITAR-TASS agency has reported.

In April, Russia’s State Duma passed air code amendments—which became effective in June—allowing the sale of nonrefundable tickets. Previously, passengers were entitled to full refunds on tickets if they canceled more than 24 hours before departure and 75% of the total cost if they canceled within 24 hours of the flight.

Airline representatives said low-cost carriers (LCCs) are impossible in Russia without nonrefundable tickets.

Aeroflot’s new LCC subsidiary Dobrolet launched its Moscow-Simferopol flights June 10.