combat gear

Greetings all, Can anyone help me by giving me info about any kind of norm or regulation (from any country) where it says that HMG operators onboard Navy ships MUST use kevlar cmbat helmets as part of their gear? thank you!

Well peoplle, can anybody help me? i need to find any kind of regulation, from any country or service branch, where it's specified that infantry personnel (primarily HMGunners) MUST use kevlar helmets during combat. We all know this is true thanks to plain common sense, but is it actually...