Future implementation awaits practical operational tests.
The state now says it is awaiting additional tests by the quarry.
But a decision whether to charge the mother awaits more tests.
His New York agent, John Hawkins, said the exact cause of death awaited further tests.
Police awaited overnight ballistic tests of evidence from the latest shooting, which was not immediately attributed to the sniper.
Still others are awaiting tests.
Following the completion of the US Army testing in 1969, it was sent to storage awaiting further tests.
A final determination on the cause of death will await tests that are expected to take four to six weeks.
The state is awaiting tests on blood and spinal fluid from 19 people who have recently become ill and live near areas where the birds were found.
"My red blood count has been dropping over nine months, and I'm awaiting further tests," she said.