Cov txheej txheem tseem ceeb ntawm European daim ntawv pov thawj yog IEC International Electrotechnical Commission tus qauv, IEC lub cev tsis ncaj qha rau cov khoom pov thawj, tab sis los ntawm cov ntawv pov thawj hauv lub tebchaws, thiab muab daim ntawv pov thawj thiab siv daim ntawv pov thawj yog siv cov ntawv pov thawj.
Lub teb chaws cov qauv ntawm cov teb chaws muaj kev lag luam nyob sab Europe yog qhov ua tau raws li IEC, tsuas yog qhov sib txawv me me. Cov qauv ntawm Tuam Tshoj thiab ntau lub teb chaws (cov cheeb tsam) kuj yog raws li IEC, nrog rau kev sib hloov zoo ntawm lawv.
