An Act to amend title 18, United States Code, section 4163, relating to discharge of prisoners
PL 87-665 (H.R.10493), enacted 09/19/1962

552 
PUBLIC LAW 87-665-SEPT. 19, 1962 
[76 STAT. 
18 use 
1509. 
1501-
"Whoe\ er injures any party or witness in his person or property on 
account of his attending or having attended such proceeding, inquiry, 
or investigation, or on account of his testifying or having testified to 
any matter pending therein; or 
"Whoever, with intent to avoid, evade, prevent, or obstruct compli-
ance in whole or in part with any civil investigative demand duly and 
properly made under the Antitrust Civil Process Act willfully removes 
from any place, conceals, destroys, mutilates, alters, or by other 
means falsifies any documentary material which is the subject of such 
demand; or 
"Whoever corruptly, or by threats or force, or by any threatening 
letter or communication influences, obstructs, or impedes or endeavors 
to influence, obstruct, or impede the due and proper administration of 
the law under which such proceeding is being had before such depart-
ment or agency of the United States, or the due and proper exercise 
of the power of inquiry under which such inquiry or investigation is 
being had by either House, or any committee of either House or any 
joint committee of the Congress— 
"Shall be fined not more than $6,000 or imprisoned not more than 
five years, or both." 
(b) The analysis of chapter 73 of title 18 of United States Code is 
amended so that the title of section 1505 shall read therein as follows: 
"1505. Obstruction of proceedings before departments, agencies, and 
committees." 
SAVING PROVISION 
SEC. 7. Nothing contained in this Act shall impair the authority of 
the Attorney General, the Assistant Attorney General in charge of 
the Antitrust Division of the Department of Justice, or any antitrust 
investigator to (a) lay before any grand jury impaneled before any 
district court of the United States any evidence concerning any alleged 
antitrust violation, (b) invoke the power of any such court to compel 
the production of any evidence before any such grand jury, or (c) 
institute any proceeding for the enforcement of any order or process 
issued in execution of such power, or to punish disobedience of any 
such order or process by any person, including a natural person. 
Approved September 19, 1962. 
Public Law 87-665 
AN ACT 
September 19, 1962 
[H. R. 10493] 
To amend title 18, United States Code, section 4163, relating to discharge of 
prisoners. 
Crimes and of-
fenses-
Federal prison-
ers, discharge 
date. 
62 Stat. 853. 
Be it enacted hy the Senate and House of Rejrresentatives 
of the 
United States of America in Congress assembled, That section 4163 of 
title 18, United States Code, is amended to read as follows: "Except 
as hereinafter provided a prisoner shall be released at the expiration of 
his term of sentence less the time deducted for good conduct. 
A cer-
tificate of such deduction shall be entered on the commitment by the 
warden or keeper. 
If such release date falls upon a Saturday, a 
Sunday, or on a Monday which is a legal holiday at the place of 
confinement, the prisoner may be released at the discretion of the war-
den or keeper on the preceding Friday. 
If such release date falls on a 
holiday which falls other than on a Saturday, Sunday, or Monday, the 
prisoner may be released at the discretion of the warden or keeper on 
the day preceding the holiday." 
Approved September 19, 1962.