"this chapter shall not apply to the DUA program. (2) The provisions on right of appeal and opportunity for hearing and review with respect to applications for DUA shall be consistent with this part and with sections 303(a)(1) and 303(a)(3) of the Social Security Act, 42 U.S.C. 503(a)(1) and 503(a)(3). (3) Any petition or other matter required to be filed within a time limit under this section shal" . . . . .