24 CFR §583.405

1. (a)HUD approval.
   1. (1)A recipient may not make any significant changes to an approved program without prior HUD approval. Significant changes include, but are not limited to, a change in the recipient, a change in the project site, additions or deletions in the types of activities listed in § 583.100 of this part approved for the program or a shift of more than 10 percent of funds from one approved type of activity to another, and a change in the category of participants to be served. Depending on the nature of the change, HUD may require a new certification of consistency with the consolidated plan (see § 583.155).
   2. (2)Approval for changes is contingent upon the application ranking remaining high enough after the approved change to have been competitively selected for funding in the year the application was selected.
2. (b)Documentation of other changes. Any changes to an approved program that do not require prior HUD approval must be fully documented in the recipient's records.