This file is indexed.

/lib/udev/rules.d/85-regulatory.rules is in crda 3.18-1build1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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# Runs CRDA for kernel wireless regulatory events.
# For more information see:
# http://wireless.kernel.org/en/developers/Regulatory/CRDA

KERNEL=="regulatory*", ACTION=="change", SUBSYSTEM=="platform", RUN+="/sbin/crda"