Question must be answered based on the following excerpt.

In the past ten years of the project, we have implemented teletandem in three ways: institutionally, institutionally non-integrated, and institutionally integrated teletandem (Cavalari & Aranha, 2014). The three distinctions are important. First, because they situate the actions of the Teletandem Brasil Project. These actions differ from many private/business initiatives of online collaboration to learn foreign languages that are available on the internet (...). Basically, the Teletandem Brasil Project has always been institutional, that is, the practicing students were always enrolled in the courses of both universities.

Adapted from: TELLES, João A. “Learning foreign languages in teletandem: resources and strategies”. Available at: https://www.scielo.br/j/delta/a/yDgwtkLRKj5ftZ86ddKVggm/?format=html&lang=en.

Considering the excerpt above, teletandem can be understood as a language policy once