Yep it is, as in the Across Governance Operating Manual
Here’s the relevant section:
"All committees are compensated by the Across DAO Treasury in the same way. Upon approval, a committee will receive a base level of rewards in the amount of $10k equivalent in $ACX. This amount is meant to last for a 3-month period. It is up to each committee to determine the distribution of these tokens, the details of which must be included in the snapshot vote. This should include wallet addresses and amounts for each committee member.
At the end of each quarter of service, a committee will be given an additional $10k equivalent in $ACX, except in the case of a committee being removed from service by tokenholders during that quarter, in which case there will be no additional rewards. "