Hum... Okay, in OP2 the representative of the CHAP is the actual CC, it does the CHAP job, and we all remember what happened last time somebody tried terraforming >_>
However, maybe a tech for 'Independant Life-Support' can be made so the buildings don't 'die' when out of CC, they keep 'working' and having the colonists safe, you just can't control them because the control structure is no there