Patternmaking trade certification is available, but voluntary, in Ontario.

在安大略省制模行业认证是可用的，但是自愿的。

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Trade certification for cement masons is available, but voluntary, in Ontario.

在安大略省，水泥石匠行业认证是可用的，但是自愿的。

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Construction millwright trade certification is available, but voluntary, in Ontario.

建筑技工行业认证是可用的，而在安大略省是自愿的，。

youdao

Nearly 5,000 farmers in Burkina Faso, Cameroon,Ghana,Senegal, and Sierra Leone are exporting organically-grown produce to Europe, after gaining organic and fair-trade certification with help from the U.N.Food and Agriculture Organization.

VOA: standard.2010.04.11

That extra race revenue advances the Half Full mission of raising funds for cancer, as does Armstrong's cancer-battling track record, said Satola, adding that he would permanently trade USAT certification for Armstrong's participation.

WSJ: Triathlons Part Waters for Lance Armstrong

De Gucht said the deal would center on dismantling any remaining trade tariffs while tackling regulatory and certification barriers.

CNN: EU, U.S. aim to agree free-trade deal

In the lawsuit, Gifford claims that the USGBC has engaged in deceptive trade practices, false advertising and anti-trust in promoting the LEED certification program.

FORBES: Energy-hogging LEED-certified buildings cause concern