p. 20 of the Autumn 2006 issue of the American Alpine News says the following:
"Authorities for Peru's national parks have agreed in principle to relax the "mandatory guides" regulation approved in July for all of the Huascaran National Park... The INRENA wasn't willing to return to the previous unrestricted access for climbers and hikers, but the proposed revisions will permit members of institutions affiliated with the UIAA to climb without hiring a mountain guide or official "tourist service provider." All trekkers will be allowed in the park without guides, as trekking will no longer be defined as a "risk sport." "
As of the publication date it was unclear exactly how member climbers would accredit themselves and/or whether they could avoid regulation by joining a Peruvian club on the spot in Lima or Huaraz. Apparently the new national parks and protected areas directors were unaware of the protests that the original, restrictive rules generated. The UIAA visit seems to have helped this situation and the UIAGM apparently pressured the Peruvian guide association(s?) to oppose the regs too.