Meikle said the commission remained focused on maintaining the delivery of all of its statutory functions.
Hundreds of workers could leave the Ministry for the Environment as part of cost-cutting measures, the Public Service Association said on Monday.
The ministry has called for voluntary redundancies.
The union labelled the job cuts short-sighted and said the Government was prioritising tax cuts despite the ministry’s “vitally important role”.
Ministry deputy secretary of business transformation and services Laura Dixon confirmed “expressions of interest” for voluntary redundancies from permanent staff had been called for.
Meanwhile, about 30 science and engineering jobs at Callaghan Innovation may be affected as part of a “strategic reset”.
Callaghan is one of New Zealand’s largest research organisations.