(a) Initial submission. The mortgagor must submit the materials applicable to the covered action, as specified in §§ 245.416 through 245.419, to the local HUD office when the notice required under § 245.410 is served on the tenants.

(b) Subsequent submission. If additional notice under § 245.420(c) is required, the mortgagor must submit to HUD any changes to the materials required under §§ 245.416 through 245.419 when the notice required under § 245.420(c) is served on the tenants.