Amends section 3(d) to alter described duties from 'investigation of charges and issuance of complaints under section 10, and in respect of the prosecution of such complaints before the Board' to 'investigation of allegations under section 10'; amends section 3(b) to update a cross-reference from 'or (e) of section 9' to 'or (d) of section 9'.

Strikes the fourth sentence of subsection (a).

Adds text limiting the Board’s rulemaking authority to rules concerning the internal functions of the Board and prohibiting promulgation of rules or regulations that affect substantive or procedural rights of any person, employer, employee, or labor organization, including rules concerning unfair labor practices and representation elections.

Amends subsection 8(a)(4) by striking the word 'charges' and inserting 'a civil action'. Also includes a conforming change directing that certain occurrences of the section citation be replaced with '9(d)' (per conforming amendments language).

Extensive revisions to section 10: replaces language in subsection (a) changing the Board's power phrasing from preventing engagement in unfair labor practices to 'investigate'; revises subsection (b) by changing 'charged' to 'alleged', expanding 'is engaging in' to 'is engaging in, or is about to engage in', replaces certain phrases, and modifies amendment language about complaints/proceedings; strikes subsections (c) through (k); redesignates subsections (l) and (m) as (c) and (d); and further alters the content and procedures in the redesignated subsections including requiring written summaries of findings by officers or regional attorneys on behalf of the Board.

In section 9: in subsection (c)(2) strikes text from a point through the end of the subsection and inserts a period; strikes subsection (d); redesignates subsection (e) as subsection (d).

Strikes the phrase 'section 10 (e) or (f)' and inserts 'Protecting American Jobs Act'.