/usr/share/igtf-policy/iota/RCauth-Pilot-ICA-G1.crl_url is in igtf-policy-iota 1.88-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1
http://www.rcauth.eu/pilot/g1/crl/crl.crl