Publication and entry into force

On December 19, 2024, the reform to the Federal Labor Law, known as the "Silla Law," was published in the Official Gazette of the Federation. This amendment requires employers to provide chairs with backrests to workers who perform duties in a standing position, provided that the nature of the work allows it.
The reform began to be implemented 180 days after its publication, that is, the June 17, 2025.

Implementation deadlines

As of June 17, 2025, the Ministry of Labor and Social Welfare (STPS) has a deadline of 30 days to issue the technical guidelines on the ergonomic risks associated with standing for prolonged periods.

For their part, employers will have 180 additional days, until the December 14, 2025, for:

• Adjust your internal regulations.
• Define rest times.
• Assign areas within the workplace for the use of chairs.
• Establish the processes necessary to correctly implement the measure.

Obligations for employers

The new provisions impose the following obligations on employers:

• Provide chairs with backrests in sufficient numbers to allow workers to take regular breaks.
• Designate a fixed space within the workplace for the use of these chairs.
• Prevent workers from standing throughout the working day.
• Incorporate into the internal regulations the criteria on the frequency and duration of breaks.
• Regulate rest times and the use of chairs in coordination with the joint health and safety committees.

Objective of the law

The Silla Law seeks prevent occupational risks derived from prolonged work in a standing position, such as:

• Backache.
• Muscle fatigue in legs.
• Circulatory problems.
• Joint disorders.

This reform promotes healthier and more dignified conditions for those working in sectors such as commerce, services, and certain areas of industry.

Recommended measures

Labor law specialists suggest that companies take the following actions to facilitate implementation of the law:

• Conduct a diagnosis of the jobs, to identify in which functions the use of chairs is viable.
• Acquire ergonomic furniture that meets the minimum backup and security requirements.
• Train staff and the internal committees on the new rights and obligations arising from the reform.

Enforceability and sanctions

Although the right to rest has been enforced since June 17, 2025, the sanctions will come into effect once:

1. The STPS issues the technical guidelines.
2. The adaptation period granted to companies is met.

Penalties may include:

• Fines from 250 to 2,500 UMA, depending on the severity of the omission.
• In cases of repeat offenses, even suspension of activities.

Conclusion

The Silla Law represents an important step forward in workplace health and well-being in Mexico. Starting June 17, 2025, companies must:

• Provide chairs with sufficient back support.
• Establish a fixed rest area in your workplace.
• Include these measures in your internal regulations.
• Perform ergonomic diagnoses and train staff.

Although the deadline for full compliance with the regulations expires on December 14, 2025It is advisable for organizations to begin implementing them as soon as possible. Complying with these provisions not only avoids penalties, but also improves working conditions and protects employee health.