; and (II) establishing additional terms and conditions for the proposed activity or event would be necessary to protect or avoid conflict on or with Federal recreational lands and waters, resources, and programs. (4) Fees The Secretary concerned may elect not to charge a fee to a recreation service provider (including a youth group) for a special recreation permit for an organized group recreation activity or event. (5) Savings clause Nothing in this subsection prevents the Secretary concerned from limiting or abating the allowance of a proposed activity or event under paragraph (3)(B)(i) or the issuance of a special recreation permit for an organized group recreation activity or event, based on resource conditions, administrative burdens, or safety issues. (6) Qualifications A special recreation permit for an organized group recreation activity or event issued under paragraph (3) shall be subject to the health and safety standards required by the Secretary concerned for a permit issued under paragraph (13)(A)(iv) of section 802 of the Federal Lands Recreation Enhancement Act ( 16 U.S.C. 6801 ) (as amended by this title). 313. Permit flexibility (a) In general The Secretary concerned shall establish guidelines to allow a holder of a special recreation permit under subsection (h) of section 803 of the Federal Lands Recreation Enhancement Act ( 16 U.S.C. 6802 ) (as amended by this title), to engage in another recreational activity under the special recreation permit that is substantially similar to the specific activity authorized under the special recreation permit. (b) Criteria For the purposes of this section, a recreational activity shall be considered to be a substantially similar recreational activity if the recreational activity— (1) is comparable in type, nature, scope, and ecological setting to the specific activity authorized under the special recreation permit; (2) does not result in a greater impact on natural and cultural resources than the impact of the authorized activity