; and (B) involved in juvenile delinquency or street gang activity and who are at high risk of continued involvement; and (2) give consideration to the need for grants to be awarded to units of local governments and Indian tribes in each region of the United States, and among urban, suburban, and rural areas. (b) Extension of grant award The Administrator may extend the grant period under section 530(b)(1) for a PROMISE Implementation grant to a unit of local government or an Indian tribe, in accordance with regulations issued by the Administrator. (c) Renewal of grant award Subject to the availability of appropriations, the Administrator may renew a PROMISE Implementation grant to a unit of local government or an Indian tribe to provide such unit or tribe with additional funds to continue implementation of a PROMISE Plan. Such a renewal— (1) shall be initiated by an application for renewal from a unit of local government or an Indian tribe; (2) shall be carried out in accordance with regulations issued by the Administrator