Wrong.
There is no procedure for a president to declassify anything, because it is totally arbitrary and up to the president.
That is because presidents not only need to share classified docs with staffers at will, but may also decide to send classified info to other heads of states, for various legitimate reasons, and no one else gets any say.
And yes, a president can also attack a country if he believes there is an imminent threat from that country. He does not have to wait for congress if in defense.
Actuall there is
(A) a description of the file series;
(B) an explanation of why the information within the file series is almost invariably exempt from automatic declassification and why the information must remain classified for a longer period of time; and
(C) except when the information within the file series almost invariably identifies a confidential human source or a human intelligence source or key design concepts of weapons of mass destruction, a specific date or event for declassification of the information, not to exceed December 31 of the year that is 50 years from the date of origin of the records.
(3) The Panel may direct the agency not to exempt a designated file series or to declassify the information within that series at an earlier date than recommended. The agency head may appeal such a decision to the President through the National Security Advisor.
(4) File series exemptions approved by the President prior to December 31, 2008, shall remain valid without any additional agency action pending Panel review by the later of December 31, 2010, or December 31 of the year that is 10 years from the date of previous approval.
(d) The following provisions shall apply to the onset of automatic declassification:
(1) Classified records within an integral file block, as defined in this order, that are otherwise subject to automatic declassification under this section shall not be automatically declassified until December 31 of the year that is 25 years from the date of the most recent record within the file block.
(2) After consultation with the Director of the National Declassification Center (the Center) established by section 3.7 of this order and before the records are subject to automatic declassification, an agency head or senior agency official may delay automatic declassification for up to five additional years for classified information contained in media that make a review for possible declassification exemptions more difficult or costly.
(3) Other than for records that are properly exempted from automatic declassification, records containing classified information that originated with other agencies or the disclosure of which would affect the interests or activities of other agencies with respect to the classified information and could reasonably be expected to fall under one or more of the exemptions in paragraph (b) of this section shall be identified prior to the onset of automatic declassification for later referral to those agencies.
(A) The information of concern shall be referred by the Center established by section 3.7 of this order, or by the centralized facilities referred to in section 3.7(e) of this order, in a prioritized and scheduled manner determined by the Center.
(B) If an agency fails to provide a final determination on a referral made by the Center within 1 year of referral, or by the centralized facilities referred to in section 3.7(e) of this order within 3 years of referral, its equities in the referred records shall be automatically declassified.
(C) If any disagreement arises between affected agencies and the Center regarding the referral review period, the Director of the Information Security Oversight Office shall determine the appropriate period of review of referred records.
(D) Referrals identified prior to the establishment of the Center by section 3.7 of this order shall be subject to automatic declassification only in accordance with subparagraphs (d)(3)(A)–(C) of this section.
(4) After consultation with the Director of the Information Security Oversight Office, an agency head may delay automatic declassification for up to 3 years from the date of discovery of classified records that were inadvertently not reviewed prior to the effective date of automatic declassification.
(e) Information exempted from automatic declassification under this section shall remain subject to the mandatory and systematic declassification review provisions of this order.
(f) The Secretary of State shall determine when the United States should commence negotiations with the appropriate officials of a foreign government or international organization of governments to modify any treaty or international agreement that requires the classification of information contained in records affected by this section for a period longer than 25 years from the date of its creation, unless the treaty or international agreement pertains to information that may otherwise remain classified beyond 25 years under this section.
(g) The Secretary of Energy shall determine when information concerning foreign nuclear programs that was removed from the Restricted Data category in order to carry out provisions of the National Security Act of 1947, as amended, may be declassified. Unless otherwise determined, such information shall be declassified when comparable information concerning the United States nuclear program is declassified.
(h) Not later than 3 years from the effective date of this order, all records exempted from automatic declassification under paragraphs (b) and (c) of this section shall be automatically declassified on December 31 of a year that is no more than 50 years from the date of origin, subject to the following:
(1) Records that contain information the release of which should clearly and demonstrably be expected to reveal the following are exempt from automatic declassification at 50 years:
(A) the identity of a confidential human source or a human intelligence source; or
(B) key design concepts of weapons of mass destruction.
(2) In extraordinary cases, agency heads may, within 5 years of the onset of automatic declassification, propose to exempt additional specific information from declassification at 50 years.
(3) Records exempted from automatic declassification under this paragraph shall be automatically declassified on December 31 of a year that is no more than 75 years from the date of origin unless an agency head, within 5 years of that date, proposes to exempt specific information from declassification at 75 years and the proposal is formally approved by the Panel.
(i) Specific records exempted from automatic declassification prior to the establishment of the Center described in section 3.7 of this order shall be subject to the provisions of paragraph (h) of this section in a scheduled and prioritized manner determined by the Center.
(j) At least 1 year before information is subject to automatic declassification under this section, an agency head or senior agency official shall notify the Director of the Information Security Oversight Office, serving as Executive Secretary of the Panel, of any specific information that the agency proposes to exempt from automatic declassification under paragraphs (b) and (h) of this section.
(1) The notification shall include:
(A) a detailed description of the information, either by reference to information in specific records or in the form of a declassification guide;
(B) an explanation of why the information should be exempt from automatic declassification and must remain classified for a longer period of time; and
(C) a specific date or a specific and independently verifiable event for automatic declassification of specific records that contain the information proposed for exemption.