; expansion of registrants. Sec. 405. Disclosure of political contributions. Sec. 406. Identification numbers for lobbyists. Sec. 407. Ethics training for lobbyists. Sec. 408. Estimates based on tax reporting system. Sec. 409. Effective date. Title V—Transparency in Federal Contracting Sec. 501. Improving application programming interface and website data elements. Sec. 502. Improving data quality. Sec. 503. Requirements relating to reporting of award data. Sec. 504. Recipient performance transparency. Sec. 505. Improvement of Federal Awardee Performance and Integrity Information System Database. Sec. 506. Federal contractor compliance. Sec. 507. Improving access to information disclosed on lobbying activities. Sec. 508. Inclusion of narratives on USAspending.gov. Title VI—Executive Branch Transparency Subtitle A—Public Availability of Information Sec. 601. Requirement for disclosure of Federal sponsorship of all Federal advertising or other communications. Sec. 602. Improving access to influential executive branch official’s visitor access records. Sec. 603. Public availability of budget justifications and appropriation requests. Sec. 604. Improving rulemaking disclosure for the Office of Information and Regulatory Affairs. Sec. 605. Improving registration information from agents of foreign principals. Sec. 606. Agency defined. Sec. 607. Government-wide entity identifier. Sec. 608. Grants transparency requirements. Subtitle B—Publication of Opinions of Office of Legal Counsel Sec. 611. Short title. Sec. 612. Schedule of publication for final OLC opinions. Sec. 613. Exceptions and limitation on public availability of final OLC opinions. Sec. 614. Method of publication. Sec. 615. Index of opinions. Sec. 616. Private right of action. Sec. 617. Severability. Sec. 618. Definitions. Subtitle C—Contempt of Congress Procedures and Enforcement Sec. 621. Availability of civil action to enforce House of Representatives subpoenas. Sec. 622. Alternate procedures for enforcement of criminal contempt of Congress.