<prompt> Translate the following text to EnglishBaadhi ya marekebisho haya yanaweza kuwa ya kujitolea, mengine yanaweza kuwa yameamriwa na sheria, na mengine yanaweza kuwa matokeo ya mipango ya utawala kama vile Mapitio ya Utendaji wa Kitaifa.  <response>: Some of These reforms may be self-initiated, others may have been mandated by legislation, still others may be the result of administration initiatives such as the National Performance Review. 