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He palapala hōʻoia ʻole ka palapala hōʻoia UL ma ʻAmelika Hui Pū ʻIa, ʻo ia hoʻi ka hoʻāʻo ʻana a me ka hōʻoia ʻana i ka hana palekana huahana, a ʻaʻole i hoʻokomo ʻia nā ʻano EMC (electromagnetic compatibility) o nā huahana i kāna laulā hōʻoia. He hui ʻoihana kūʻokoʻa ʻo UL, ʻaʻole no ka loaʻa kālā, e hoʻāʻo ana no ka palekana o ka lehulehu. Ua hoʻokumu ʻia ʻo UL i ka makahiki 1894. I ka wā mua, ua hilinaʻi nui ʻo UL i nā kālā i hāʻawi ʻia e ka ʻoihana ʻinikua ahi e mālama i kāna hana. ʻAʻole a hiki i ka makahiki 1916 i kūʻokoʻa loa ai ʻo UL. Ma hope o kahi kokoke i hoʻokahi haneli mau makahiki o ka hoʻomohala ʻana, ua lilo ʻo UL i kino hōʻoia kaulana o ka honua me kahi hoʻonohonoho o nā ʻōnaehana hoʻokele hui paʻa, ka hoʻomohala maʻamau a me nā kaʻina hana hōʻoia huahana.
Ua hoʻokumu ʻia ka palapala hōʻoia UL e ka ʻoihana hōʻoia, ke keʻena hoʻomohala kūlana, ke keʻena ʻoihana, ke keʻena ʻoihana. 1894, a ʻo UL nō hoʻi ka mea nāna i hoʻomohala i nā kūlana aupuni Kanada.
He mea nui ka loaʻa ʻana o ka Palapala Hōʻoia UL no ka mea e hōʻike ana i ka mākaukau o ka mea hana a me nā mea lawelawe. Makemake nā mea kūʻai aku e ʻike i ka ʻoihana a lākou e hoʻolimalima ai e hoʻokomo i kā lākou lako ua kūpono e hana pololei i ka hana, a ua lawe lākou i ka manawa e hōʻoia ai ua hoʻāʻo ʻia nā huahana a pau a lākou e hoʻokomo ai a ua kūlike me nā kūlana palekana. Hōʻike pū ka Palapala Hōʻoia UL ua kūlike kahi ʻoihana me nā lula palekana a me ke kaiapuni kūloko a me ke aupuni pekelala. Hiki iā ʻoe ke hilinaʻi i ka ʻike ʻana ua palekana kāu poʻe limahana a me nā mea kūʻai aku.
Hāʻawi ka UL Verification Mark i ka hoʻāʻo ʻana a me ka hōʻoia ʻana o nā ʻaoʻao ʻekolu e pili ana i ka ʻepekema a me ka ʻepekema no nā koi kūʻai aku a nā mea hana no kā lākou huahana, e like me ka hana huahana, ka maikaʻi, a me nā koi hana.
1. Hoʻohana ka huahana i nā ʻano palekana huahana like ʻole; ke koho nā mea kūʻai aku a me nā ʻāpana i ka palapala hōʻoia huahana US, he mea kūpono ke koho i nā māka huahana me ka mākeke holoʻokoʻa.
2. ʻOi aku ma mua o 100 mau makahiki ka mōʻaukala o ka UL. Ua paʻa loa kou kiʻi i nā mea kūʻai aku a me ke aupuni. Inā ʻaʻole ʻoe e kūʻai aku i nā huahana i nā mea kūʻai aku, pono ʻoe i nā huahana e loaʻa ka palapala hōʻoia UL, i hiki ai ke hana hou ʻia nā huahana.
3. ʻOi aku ka hilinaʻi o nā mea kūʻai aku a me nā ʻāpana kūʻai ʻAmelika i nā huahana a ka hui.
4. Aia ma mua o 40,000 mau ʻāpana hoʻomalu ma nā aupuni pekelala, mokuʻāina, kalana, a me nā aupuni kūlanakauhale o ʻAmelika Hui Pū ʻIa, a ʻike lākou a pau i ka hōʻailona hōʻoia UL.
He mea nui ka palapala hōʻoia UL i loaʻa i nā huahana Soloon no ke kūʻai aku ʻana o kā mākou huahana ma ʻAmelika Hui Pū ʻIa, Kanada a me nā ʻāina ʻē aʻe.
