Hong Kong educators have called for further details about a new plan to require more teachers to pass a test on the city’s mini-constitution, including whether the proposal applies to native English speakers.

Chief Executive Carrie Lam Cheng Yuet-ngor unveiled the measure in her annual policy blueprint on Wednesday, saying teachers who were fresh graduates or changing jobs would have to take an exam on the Basic Law before they started teaching at Hong Kong’s hundreds of government-subsidised schools before the next academic year began.

Teachers employed as civil servants in the city’s dozens of public schools already have to pass such a test.