In this task, you are given text for US Congressional and California state bills, your task is to generate a summary for this bill.

SECTION 1. SHORT TITLE.

This Act may be cited as the ''Preventing Labor Union Slowdowns Act
of 2015'' or the ''PLUS Act''.

SEC. 2. DETERRING LABOR SLOWDOWNS.

(a) Amendments to the National Labor Relations Act.--The National
Labor Relations Act is amended--
(1) in section 1 (29 U.S.C. 151), by adding at the end the
following:
''International trade is one of the most important
components of the economy of the United States and will likely
continue to grow in the future. In order to remain competitive
in an increasingly competitive global economy, it is essential
that the United States possess a highly efficient and reliable
public and private transportation network. The ports of the
United States are an increasingly important part of such
transportation network. Experience has demonstrated that
frequent and periodic disruptions to commerce in the maritime
industry in the form of deliberate and unprotected labor
slowdowns at the ports of the United States have led to
substantial and frequent economic disruption and loss,
interfering with the free flow of domestic and international
commerce and threatening the economic health of the United
States, as well as its citizens and businesses. Such frequent
and periodic disruptions to commerce in the maritime industry
hurt the reputation of the United States in the global economy,
cause the ports of the United States to lose business, and
represent a serious and burgeoning threat to the financial
health and economic stability of the United States. It is
hereby declared to be the policy of the United States to
eliminate the causes and mitigate the effects of such
disruptions to commerce in the maritime industry and to provide
effective and prompt remedies to individuals injured by such
disruptions.'';
(2) in section 2 (29 U.S.C. 152), by adding at the end the
following:
''(15) The term 'employee engaged in maritime employment'
has the meaning given the term 'employee' in section 2(3) of
the Longshore and Harbor Workers' Compensation Act (33 U.S.C.
902(3)).
''(16) The term 'labor slowdown'--
''(A) includes any intentional effort by employees
to reduce productivity or efficiency in the performance
of any duty of such employees; and
''(B) does not include any such effort required by
the good faith belief of such employees that an
abnormally dangerous condition exists at the place of
employment of such employees.'';
(3) in section 8(b) (29 U.S.C. 158(b)), by adding at the
end the following:
''(8) in representing, or seeking to represent, employees
engaged in maritime employment, to engage in a labor slowdown
at any time, including when a collective-bargaining agreement
is in effect.'';
(4) in section 9 (29 U.S.C. 159), by adding at the end the
following:
''(f) Effect of Labor Slowdowns.--If a labor organization has been
found, pursuant to a final order of the Board, to have violated section
8(b)(8), the Board shall--
''(1) revoke the exclusive recognition or certification of
the labor organization, which shall immediately cease to be
entitled to represent the employees in the bargaining unit of
such labor organization; or
''(2) take other appropriate disciplinary action.''; and
(5) in section 10(l) (29 U.S.C. 160(l)), in the first
sentence, by striking ''or section 8(b)(7)'' and inserting ''or
paragraph (7) or (8) of section 8(b)''.
(b) Amendment to the Labor Management Relations Act, 1947.--Section
303 of the Labor Management Relations Act, 1947 (29 U.S.C. 187) is
amended--
(1) in subsection (a), by striking ''in section 8(b)(4)''
and inserting ''under paragraph (4) or (8) of section 8(b)'';
(2) in subsection (b), by inserting '', including
reasonable attorney fees for a violation under section 8(b)(8)
of the National Labor Relations Act (29 U.S.C. 158(b)(8))''
before the period; and
(3) by adding at the end the following:
''(c) In an action for damages resulting from a violation of
section 8(b)(8) of the National Labor Relations Act (29 U.S.C.
158(b)(8)), it shall not be a defense that the injured party has, in
any manner, waived, or purported to waive, the right of such party to
pursue monetary damages relating to the labor slowdown at issue--
''(1) in connection with a contractual grievance alleging a
violation of a clause prohibiting a strike, or a similar
clause, in a collective-bargaining agreement; or
''(2) in connection with an action for a breach of such a
clause under section 301.''.
Preventing Labor Union Slowdowns Act of 2015 or the PLUS Act This bill amends the National Labor Relations Act and the Labor Management Relations Act, 1947 to make it an unlawful labor practice for a labor organization or its agents while representing, or seeking to represent, employees engaged in maritime employment to engage in a labor slowdown at any time, including when a collective-bargaining agreement is in effect. In cases where a labor organization has committed a violation, the National Labor Relations Board shall: revoke the organization's exclusive recognition or certification to represent the employees in the bargaining unit, or take other appropriate disciplinary action.