; and (B) shall publish online a detailed written explanation of any such waiver. (b) Agency consultation with OIRA (1) In general An agency may consult with OIRA at any time on any regulatory action. OIRA shall maintain a log of each agency consultation with OIRA before submitting the significant regulatory action for review under this section, including the date of the consultation, the name of each agency official involved with the consultation, and a description of the purpose of the consultation. (2) Regulation identifier number The head of an agency shall make every effort to obtain a regulation identifier number for the regulatory action that is the subject of the consultation before consulting with OIRA. (3) Consultation information required If the head of an agency is unable to obtain the regulation identifier number as described in paragraph (2), the head of the agency shall provide the regulation identifier number to OIRA as soon as the number is obtained with a list of any previous interactions with OIRA relating to the regulatory action that is the subject of the consultation. (c) Agency submission of significant regulatory action for review Before issuing a significant regulatory action, the head of an agency shall submit the significant regulatory action to the Administrator for review and shall include the following: (1) The text of the significant regulatory action. (2) A detailed description of the need for the significant regulatory action. (3) An explanation of how the significant regulatory action will meet the identified need. (4) An assessment of potential costs and benefits of the significant regulatory action. (5) An explanation of the manner in which the significant regulatory action is consistent with a statutory mandate and avoids undue interference with State, local, and tribal government functions. (6) An explanation of agency efforts to coordinate with State, local, and tribal governments throughout the regulatory process. (7) For an economically significant regulatory action, if