He has the power to declassify, if they are.
Experts agreed that the president, as commander-in-chief, is ultimately responsible for classification and declassification. When someone lower in the chain of command handles classification and declassification duties -- which is usually how it’s done -- it’s because they have been delegated to do so by the president directly, or by an appointee chosen by the president.
Politifact
Same with department heads such as Directors or Secretaries....
They are authorized to declassify anything their own departments created and classified.
Utterly false
Now you're just making shit up.
No it is NOT false. If you had paid attention during the Hillary server investigation, You would know that....there were several things the state dept felt should be declassified, and the department, with the Director of the department, was the only person who could declassify the documents ahead of their scheduled time...the secretaries of the department or the Director of the Agency could classify or declassify, what they felt appropriate, at any time, if THEY were the department or agency who did the initial classified marking.
Utter bullshit.
Declassification Frequently Asked Questions | OPEN | Department of Justice
Do you read your own links?
Sec. 1.3.
Classification Authority.
(a) The authority to classify information originally may be exercised only by:
(1) the President and the Vice President;
(2) agency heads and officials designated by the President; and
(3) United States Government officials delegated this authority pursuant to paragraph (c) of this section.
(b) Officials authorized to classify information at a specified level are also authorized to classify information at a lower level.
(c) Delegation of original classification authority.
(1) Delegations of original classification authority shall be limited to the minimum required to administer this order. Agency heads are responsible for ensuring that designated subordinate officials have a demonstrable and continuing need to exercise this authority.
The President Executive Order 13526