The agreement to establish LATAM was approved by Chilean authorities on 21 September 2011, with 11 restrictions. These include transferring four landing slots at São Paulo-Guarulhos International Airport to competitors interested in operating flights to Santiago de Chile's Comodoro Arturo Merino Benítez International Airport, renouncing membership to either the Oneworld or Star Alliance airline alliance, restricting the increase in capacity on flights between Brazil and Chile, and opening code-share possibilities and fidelity program membership to interested competitors. On 14 December 2011, Brazilian authorities approved the agreement, imposing similar restrictions as Chilean authorities: LATAM would have to choose an alliance by August 2012 and frequencies between São Paulo and Santiago de Chile would have to be reduced. At the time, TAM had two pairs of slots while LAN had four. LAN had to relinquish two pairs to competitors interested in using them. On 7 March 2013, LATAM announced its final decision to choose Oneworld as its global airline alliance. As a result, TAM left Star Alliance during the second quarter of 2014 to join Oneworld.