Altimeter Cold Temperature Correction Policy
I know of at least one company that publishes corrections as part of their 10-7 program (company unique data published in a Jeppesen format). Others superimpose the data on the approach chart in a custom format.
This still leaves the question of what to do about the crossing restrictions listed in the FMS. Generally, it's a bad plan to go through the arrival and approach and systematically replace the crossing altitudes with temperature corrected values. Way too much chance of a catastrophic 'fat finger' mistake.
One idea proposed is to have unique ARINC 424 records created with the cold weather approach crossing altitudes coded into the database. This would make the entire approach line selectable through the FMS and no mods required 'on the fly.' I personally like this idea but it would lead to ever larger databases and some users are already up against their memory limits. One could limit the damage and calculate just a single cold weather approach, coded to correct for a two-sigma historical low temp and accept the artificially high minima when the weather was a bit warmer.