Mexico's federal district (DF) interior minister, José Avila, is due to meet with garbage handlers at the capital's Bordo Poniente landfill to discuss the site's closure.
The workers are concerned about plans to reduce the levels of waste being delivered to the site, the city government said in a release.
With a little over a month before the scheduled closure of the landfill, the capital's mayor remains vague about the government's plans for the site.
"We are progressing with the closure by reducing the tonnage of garbage being sent to the site. We are separating the organic material and making compost," said DF mayor Marcelo Ebrard.
The Bordo Poniente, one of the largest landfills in the world, is scheduled to close by December 31 under an agreement reached last year between the federal and DF governments.