The leading

Aviation Law Firm in LATAM,

Serving Mexico, Panama, the Dominican Republic and Ecuador

30 years

SIERRA LATAM

We believe in high quality legal advice

High quality legal advice, equivalent to such in the most sophisticated legal services markets. We want you to realize that Mexico is equipped with world-class legal advisors who are willing and able to represent your business carefully, professionally, quickly, and with an in-depth and insightful knowledge of the law.

The ability and training of our lawyers and staff is paramount. We are deeply proud to be the standard bearer of aeronautical law in Mexico.

WHAT WE DO

Areas of expertise

Our firm is proud to provide its services in various areas of specialization to companies and entities from around the world looking to resolve their legal needs and requirements in Mexico.

Corporate Law, Joint Ventures, M&A, Foreign Investment and Corporate Governance

Litigation, Arbitration
& Mediation

Other areas of expertise

Aviation Law

Aircraft finance & Leasing

Lawfare: The Usage of Law as a Weapon of War By Carlos Sierra De la Peña.

July 2023

By Carlos Sierra De la Peña.

Cape Town Registration Filings and Sphere of Application of the Convention.

July 2023

By Jessi Saba

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The Mexican Senate approved a constitutional reform to gradually reduce the legal workweek from 48 to 40 hours, with a phased implementation expected between 2027 and 2030. The measure is considered one of the most significant labor changes in recent decades and seeks to modernize Mexico’s work framework while maintaining full pay for workers during the transition. Lawmakers supporting the reform argue it aligns the country more closely with international standards and responds to long standing demands to reduce excessive working hours.

However, the approved text does not constitutionally guarantee two weekly rest days, meaning the traditional structure of six working days with one mandatory day off remains in place. This omission has sparked criticism from opposition legislators and labor groups, who argue that without explicitly establishing a five day workweek, the reform falls short of delivering a structural shift in workers’ rest rights. The debate now centers on how the change will be regulated in secondary laws and how businesses will adapt to the gradual reduction.

SOURCE: https://elpais.com/mexico/2026-02-11/el-senado-da-luz-verde-a-la-jornada-laboral-de-40-horas-pero-deja-fuera-los-dos-dias-de-descanso-semanal.html?outputType=amp

 #ReformaLaboral #SenadoDeLaRepublica #JornadaLaboral #DebateLegislativo #mexico
The Aeropuerto Internacional de la Ciudad de México (AICM) and Aeropuerto Internacional Felipe Ángeles (AIFA) updated their Tarifa de Uso de Aeropuerto (TUA) for February 2026. At the AICM, the national passenger fee will be 525 pesos, lowered from 537.22 pesos in January, while the international fee will be 996.79 pesos, down from 1,020 pesos. 

At AIFA, the national TUA remains 266.62 pesos (unchanged from January), and the international TUA is 470.55 pesos (slightly lower than January’s 481.51 pesos). The TUA is a mandatory charge applied to passengers for using airport facilities and varies depending on the airport and whether the flight is domestic or international. 

SOURCE: https://www.milenio.com/negocios/aicm-el-aifa-actualizan-la-tua-en-febrero-2026-precio
Aviation specialists are urging that Airport Use Fee TUA revenues be returned directly to Mexico City International Airport AICM so the airport can fund essential maintenance and recover operational capacity. Today nearly all TUA income is diverted to the Texcoco cancellation bond trust, leaving AICM without the resources needed to maintain infrastructure under rising demand.

Although part of the debt has been repurchased, AICM remains obligated to long term bond payments until at least 2047. This forces the airport to rely mainly on commercial operations and airline service fees, leaving minimal funds for urgent repairs. Redirecting TUA back to AICM is described as the only viable path to stabilize and prevent further deterioration.

SOURCE: https://www.elfinanciero.com.mx/empresas/2026/02/05/piden-regresar-recursos-del-tua-al-aicm/
 #AICM #TUA #Aviation #Mexico #infrastructure
President Claudia Sheinbaum reaffirmed that Pemex will remain the central axis of Mexico’s energy industry and that private participation will only occur through mixed schemes where Pemex keeps control. She stated that previous models that granted concessions or guaranteed profits to private companies will not return.

Sheinbaum explained that private firms may join specific projects in areas such as fertilizers and petrochemicals, but only under structures where Pemex leads operations. All associated projects will pay a thirty percent petroleum for wellbeing tax before cost recovery or profit sharing.

SOURCE: https://www.jornada.com.mx/noticia/2026/02/04/economia/sheinbaum-mantendra-a-pemex-como-eje-de-la-industria-energetica

 #Mexico #Pemex #EnergyPolicy #ClaudiaSheinbaum #oil
Mexican President Claudia Sheinbaum reported that she held a productive and respectful phone call with U S President Donald Trump focused on trade cooperation, security coordination and the review of the United States Mexico Canada Agreement (USMCA). Both sides expressed willingness to strengthen commercial ties and advance bilateral priorities. Technical teams from both governments will continue working on trade, customs and security matters. Sheinbaum described the dialogue as open and constructive, while Trump called the exchange positive.

SOURCE: https://www.jornada.com.mx/noticia/2026/01/29/politica/sheinbaum-dialogo-con-trump-avanzamos-en-comercio-y-relacion-bilateral-informa

#SheinbaumTrumpTalks #BilateralRelations #TradeCooperation #SecurityCoordination #usmca
Mexico’s President Claudia Sheinbaum stated that the decision to stop or pause oil shipments to Cuba is a sovereign choice made by Mexico. She emphasized that each shipment depends on Pemex’s operational and contractual assessments and that the government only intervenes when a shipment is considered for humanitarian reasons.

Sheinbaum avoided confirming whether a January shipment was removed from the schedule but insisted that Mexico will continue to show solidarity toward Cuba while making independent decisions regarding energy cooperation.

SOURCE: https://lopezdoriga.com/nacional/dejar-enviar-petroleo-cuba-decision-soberana-mexico-sheinbaum/
 #Mexico #Cuba #Energy #Pemex #claudiasheinbaum
Mexico’s Federal Civil Aviation Agency AFAC has begun issuing digital licenses for aviation technical personnel starting January 22, 2026. The new digital format forms part of a broader modernization strategy for the national aviation sector and is designed to streamline administrative processes.

The digital license will coexist with the traditional physical credential, and both formats will carry full legal validity. This move supports Mexico’s push toward digital transformation and aims to improve efficiency for pilots, technicians, and other certified personnel.

SOURCE: https://www.reforma.com/inicia-afac-emision-de-licencias-digitales-para-sector-aereo/ar3138562

#AFAC #AviationMexico #DigitalLicense #AviationNews #mexicoaerospace
Mexico City International Airport began its second phase of specialized security training for personnel from the Airport Navy Group and other agencies working in passenger and cargo screening. The program reinforces operational capabilities through advanced instruction on detection techniques, risk identification, and coordinated response.

This initiative follows earlier training cycles aimed at strengthening security standards at AICM as traffic increases and international events approach this year. It seeks to elevate consistency and readiness across all security teams involved in airport operations.

SOURCE: https://a21.com.mx/aeropuertos/2026/01/21/comienza-segundo-entrenamiento-especializado-para-seguridad-del-aicm/

#Aviation
#AirportSecurity
#AICM
#MexicoAviation
#aeroportuario
The FAA issued a 60 day safety alert advising airlines to exercise extreme caution when flying over Mexico, Central America, and parts of South America due to potential military activity and possible interference with navigation systems, including GPS. The notices indicate “potentially dangerous situations” at all altitudes and apply to airspace over Mexico, Panama, Colombia, Ecuador, and regions of the eastern Pacific.

The warning comes amid rising regional tension following recent United States military operations in Venezuela and signals that further actions in the area may occur. Airlines are advised to assess risks and consider operational adjustments while the alert remains active.

SOURCE: https://www.eleconomista.com.mx/internacionales/faa-avisa-aerolineas-sobre-posibles-acciones-militares-centroamerica-sudamerica-20260116-795672.html

#FAA #AviationSafety #USPolicy #LatinAmerica #airlines
Mexico’s top economic priority is to keep the United States Mexico Canada Agreement in force during its upcoming review, Economy Secretary Marcelo Ebrard said. The government’s position is focused on preserving the treaty rather than reopening a full renegotiation, following consultations with industry, labor groups and the private sector.

Ebrard emphasized that the review process, scheduled to conclude in mid-2026, should reinforce certainty for investment and trade. Mexico will seek stronger dispute resolution mechanisms and greater reciprocity in labor and environmental enforcement to avoid unilateral measures that could disrupt regional trade flows.

SOURCE: https://www.elfinanciero.com.mx/economia/2026/01/16/mantener-el-t-mec-objetivo-estrategico-del-pais-ebrard/

#USMCA #TMEC #MexicoEconomy #TradePolicy #northamerica

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