Franz also said that the arb did not shield officials from questioning or blame.
He was interviewed by the arb, but not identified as having done anything wrong.
Members of Congress received a classified briefing on the arb's findings Wednesday.
Also, the committee identified several conflicts of interest between the arb and the people it was investigating.
Pickering and arb co-chairman retired Navy Adm. Mike Mullen will testify before the committee September 19, Cummings noted.
Instead, the arb must work out agreements with the railroads themselves if they wish to go beyond federal regulation.
The arb deliberations were conducted in strict confidentiality.
Bburs technical terms to describe the metre he used are, ramal musaddas makhbn ´ar and arb gh abtar gh makhbn muhzf wazn.
Another word is arb, which is applied to the flies which were brought upon Egypt in the great plague.
Perhaps 7, 8, or 10 Bajaurs had fallen to the matchlock-fire (arb) before night.