Conquer Helmets are SA2015 Certified, see the below link for more information:
Here is a link to the Helmet Certification Lists on the Snell website:
Here is the difference between SNELL and DOT certifications:
Regarding whether Conquer helmets have HANS restraint mounts, SA2015 helmets must be equipped with FIA 8858-2010 compliant M6 terminal mounts for frontal head restraints. Therefore, all Conquer SA2015 helmets do indeed have the mounts.