As with the Westminster version, the Scottish bill published last week has an expanded list of charitable purposes and proposes a public-benefit test. But again there is no definition of public benefit.
SCVO chief executive Martin Sime said: "We need clarity on the position of government agencies and institutions of the privileged. Charity needs to do what it says on the tin - charity definitions must align with public understanding."
The umbrella body supports a requirement of "overriding public benefit" which it is thought would exclude the majority of fee-paying schools.
The Executive has said it is opposed to a definition of public benefit because of its inflexibility.