We no longer have the same problems JohnE.

Today there are very few places more than 1 or 2 days travel from a city. You might not be able to drive but you can usually fly in and out instead.
It is a surprise how large of planes land on some of the remote airstrips.

We are not mounting massive migrations of self employed individuals into remote areas either.
So the result is that such a regulation is not required because of logistics and it is not worth doing because there would not be enough people going into a truly remote area to worry about it.

Today companies doing exploration or construction work work have quite a few minimum requirements that they have to meet.
These requirements are almost all concerned with providing adequate medical resources and transportation to a medical center to deal with accidents.

The idea of taking a years supply of food in for a construction camp or mining camp would be a bit weird anyhow.
They are all resupplied on either a 1 or 2 week schedule.
A 1 week resupply schedule for food is the most common now.

By the way JohnE, mines feed their people really well and very seldom work them on more than 18 or 21 day shifts.
Many sites use a 14 days in and 4 days out schedule or a 3 week in and 1 week out rotation.
The days of signing a 6 month contract and not leaving the camp until the contract ended were finished about 20 years ago.