; and (B) an implementation grant awarded under this section shall be used by the recipient for a period not to exceed 36 months. (2) Extension of planning or implementation Upon request of a grant recipient, the Attorney General may allow the grant recipient to extend the planning period described in paragraph (1)(A) or the implementation period described in paragraph (1)(B) for a reasonable length of time, as determined by the Attorney General. (3) Limitation on additional funds If the Attorney General allows an extension under paragraph (2), the Attorney General may not award additional grant funds. (e) Planning grants A grant awarded for the planning phase of a project may be used to— (1) identify, verify, and prioritize crime hot spots within the focus neighborhood; (2) build community partnerships and facilitate leadership to ensure residents are active participants in the strategy to address crime in the community; (3) collaborate with local law enforcement agencies, research partners, and the community to analyze the drivers of crime and assess the needs of the community and the available resources to meet those needs; and (4) work with community consortium partners to develop a comprehensive cross-sector strategic plan to reduce crime in the focus neighborhood that is based on the findings made under paragraph (3). (f) Implementation grants Funds awarded for the implementation phase of a project may be used to— (1) convene regular meetings of cross-sector partners and the project management team; (2) continue work with research partners to assess project implementation; (3) modify strategies developed during project planning as appropriate; (4) support personnel and program costs to implement strategies developed during project planning; (5) pursue community engagement and leadership development