People on the Isle of Man who are suspected of having breast cancer are being offered referrals at a UK hospital to cut waiting times.
Current on-island waiting times exceed the two-week maximum.
The choice of an appointment at Spire Murrayfield Hospital, on the Wirral, applies to those waiting for an urgent consultation with a specialist.
Manx Care said the temporary measure would secure "faster access to treatment" and reduce the overall list.
Chief executive Teresa Cope said the current failure to meet the standard two-week waiting time for a referral was "not acceptable", and the temporary arrangements would give the health body the chance to "establish a sustainable breast screening and treatment service that meets the needs of people".
Under the new arrangements, any surgery and initial follow-up appointments will be performed at the off-island private facility.
However, chemotherapy and radiotherapy treatment will continue to be delivered on the island and at Clatterbridge respectively.
Care pathways for those travelling off-island for appointments will continue to be managed by Manx Care.
The arrangements will be in place until waiting lists, which have grown as a result of the disruption caused by the coronavirus pandemic, have been reduced by increasing on-island capacity, and standard waiting times are being met.
Julie Stokes, of the Manx Breast Cancer Support Group, said the charity was "fully supportive" of the plan.
She said: "It's vital that we do whatever we can to alleviate the waiting times for people on the list, particularly at such a distressing time for them.
"Faster access to treatment results in faster intervention and better outcomes, which is what we all want to achieve."