Page 6 in ther source: http://www.fanniemae.com/resources/file/ir/pdf/stock-info/series_s_12062007.pdf

In particular, our outstanding subordinated debt securities provide that during any period where interest payments on those debt securities are deferred, dividend payments on our equity securities, includi ng the Preferred Stock, may not be paid.

It is provide that here.
In the dictionary it is provided that or providing that.
How to understand it?