The district announced the change in mask policy, following an executive order from Gov Greg Abbott that prohibits public schools from requiring masks after June 4.
In the release, the district said any individual may still choose to wear a mask and personal choice should be respected.
"FBISD remains committed to making prudent decisions, no matter how difficult, to keep students, staff, parents and their families as safe as possible," the release reads.
FBISD was previously planning to require masks when moving about indoors in crowded spaces and when social distancing was unachievable. Masks would not have been required while students were seated at their desks, or during lunch, recess, PE or athletics.