Yes, they're using reverse repos to enforce the lower end of the range (0.25%) and the interest on reserves to enforce the upper end (0.5%). More detail here:

Yes, they're using reverse repos to enforce the lower end of the range (0.25%) and the interest on reserves to enforce the upper end (0.5%). More detail here: http://www.bloomberg.com/news/articles/2015-12-16/fed-removes-reverse-repo-cap-to-ensure-control-over-rates http://www.bloomberg.com/news/articles/2015-12-16/fed-remove...