Editing Earplug (section)

==== Derating in several countries ====
{| class="wikitable collapsible collapsed" style="text-align:center"
! Country, organization || Roll-down foam earplugs || Pre-molded earplugs || Earmuffs
|- style="text-align:right"
| USA, OSHA || 2 times reduction || 2 times || 2 times
|-style="text-align:right"
| USA, NIOSH || 2 times || 3.3 times || 1.33 times
|-style="text-align:right"
| Italy || 2 times || 3.3 times || 1.33 times
|-style="text-align:left"
| UK || 4 dB reduction || 4 dB || 4 dB
|-style="text-align:left"
| France || 10 dB || 10 dB || 5-7 dB    
|-style="text-align:left"
| Germany || 9 dB || 5 dB || 5 dB 
|}
The wide variation in recommendations<ref name="AIHA-6-11" /> may be due in part to the very large inter-individual variability in results that cannot be predicted; but can be taken into account by [[Hearing protection fit-testing|individual measurements]].