NYC made a publicly available NYPD 2017 Patrol Guide available in PDF form. According to this page - the Patrol manual is supposed to be made available to the public since 2016. Linked from that page are the Table of Contents (which gives you the procedural numbers with which you can follow procedural changes) and PDFs of some procedure changes from 2019, 2019, 2022, 2024. These same NYPD issued procedural memoranda should be available at the NYC Municipal Library.
The latest legal publisher version of the NYPD Patrol Guide is at the reference desk - this is a continually updated legal resource - but we keep (and mark obsolete) the replaced pages for historical research purposes. It is the Library's policy to begin with a new guide every year and bind the previous year's Patrol Guide with updates and shelve it in our [Open] Special Collections under call number HV7597. Q4 every year.
An unknown organization or individual has posted a PDF of a freely available NYPD Detective guide updated to 12/10/2018, A table of contents updated to 05/26/2016 is also available. Some updates to the Detective Guide are documented here.
A list of NYPD Manuals, Rules and Regulations - dates in bold indicate that this manual is owned by John Jay College:
1812 Rules & regulations, adopted by the Hon'ble. De Witt Clinton, Esq. mayor of the city of New-York, to be observed by the constables and marshals of the said city.--July, 1812 [Not owned by John Jay, copy at the New-York Historical Society]
1846 Police Department. Rules and regulations for day and night police of the city of New-York; with instructions as to the legal powers and duties of policemen. New- York : Printed by Caspar C. Childs. Special Collections Room - James Fyfe Papers
1848 Rules and regulations for the government of the Police Department of the City of New-York :with instructions as to the legal powers and duties of policemen. New York (N.Y.). Police Dept.1848 - 90 p. ; 16 cm. New-York : Bowne & Co. . [Not owned by John Jay] copy at the New-York Historical Society, NYPL - digital copy of the title page here
1851. New York City.—Police Department. Rules and regulations for the government of the Police Department . . . With instructions as to the legal powers and duties of policemen. New York : Bowne & Co., 159 pp. 16°. [not owned by John Jay]
1873 New York (N.Y.). Police Dept. Manual containing the rules and regulations of the Department of Police of the City of New York. (New York : J.L. Hastie, stationer and printer, 1235 Broadway) [Not owned by John Jay, copy at the New-York Historical Society]
1876 Manual of the Brooklyn Police Department, together with rules and regulations governing the force. Brooklyn, N.Y. : Eagle Print, [Not owned by John Jay, copy at Brooklyn Public Library]
1877 New York (N.Y.). Police Dept. Manual containing the rules and regulations of the Police Department of the City of New York. (New York, M.B. Brown) [Not owned by John Jay, copy at the New-York Historical Society]
1893. Brooklyn (New York, N.Y.).Dept. of Police and Excise. Rules and regulations for the government of the police force of the city of Brooklyn as determined by the commissioner of police and excise, Oct., 1893. Brooklyn, Special Collections Room - HV7580 .K 1893
1896 New York (N.Y.). Police Dept. Manual containing the rules and regulations of the Police Department of the city of New York. [1 copy at Yale University]
1901 New York (N.Y.). Police Dept. Manual containing the rules and regulations of the police department . (New York, J.W. Pratt Co., Printers) [Not owned by John Jay, copy at the New-York Historical Society]
1905 New York (N.Y.). Police Dept. Manual containing the rules and regulations of the Police Department of the City of New York. [Not owned by John Jay, copy at the Univ. of Chicago]
1908 Rules and regulations of the Police Department, City of New York, (New York : The J.W. Pratt Co.) [Freely available on HathiTrust]
1914 Cornelius F Cahalane. Police practice and procedure. (New York, Bureau of printing, Police Dept.) Special Collections Room - HV7597 .Q 1914 available in digital copy from The Internet Archive.
1919 James Joseph Skehan and James P Conway Practical police work what to do and how to do it (New York, N.Y. : James P. Conway) Special Collections Room - KFN 6100 .Z9 S53 1919 available in digital copy from The Internet Archive
1929 New York (N.Y.). Police Dept. Manual of procedure. (New York : Police Dept.) Special Collections Room - HV7597 .Q 1929
1934(?) New York (N.Y.) Police Dept. Rules and Regulations of the Police Department of the City of New York. (New York: DeVinne-Brown Corp.) Special Collections Room – HV7597 .Q 1934z
1937-1940 New York (N.Y.). Police Dept. Rules and regulations and Manual of procedure of Police Department of the City of New York. (New York, Civil Service Bulletin) (loose-leaf) Special Collections Room - HV 7597 .Q 1940
1949 New York (N.Y.). Police Dept.: Manual of procedure, 1949. (New York, N.Y. : Police Dept.) looseleaf Special Collections Room
c1956- New York (N.Y.). Police Dept.: Rules and procedures. (New York: Police Dept., city of New York) 1 v. (loose-leaf) Special Collections Room - HV 7597 .Q 1956
In support of this article, a digital version of our copy of the 1956 manual was given to the NYTimes who posted it on Scribed.
1972- New York (N.Y.). Police Dept. Department manual. (New York : The Dept.) Special Collections & Special Collections Room HV7597 .Q 1972
Note: this is a loose-leaf intended for updating, and our copies have been partially updated by insertion of new orders and as such has grown far beyond the original 2 volumes—vol 1-Patrol; vol. 2-detectives and administration. Our copies have been updated to different dates so collectively cover NYPD procedure 1970s-1990s.
1993- 2006 -New York (N.Y.). Police Dept. Patrol guide manual (Charlottesville, VA : LexisNexis Gould Publications) John Jay has 1999, 2004, 2005, 2006 Special Collections HV7597 .Q
2016-present New York (N.Y.). Police Department.: NYPD patrol guide. Flushing, N.Y. : Looseleaf Law Publication Inc., Most Recent is at Reference Desk - HV7597 .Q4, earlier years are in Special Collections HV7597. Q4 [we keep all updates and bind them together with the obsolete orders for each year]
Since 2017, updates of the Patrol Guide are also being made freely available to the public on the NYPD Website