Full citation to The COVID Project
The COVID Project, Orders Library, Ex. MET-NYC-001, https://covidproject.com/library/MET-NYC-001 (last visited Sept. 30, 2026).
Use this form the first time you cite the instrument as it appears in the Library. The record page is the stable address; it carries the issuer, the dates, the operative words, the source and the exhibit file.
The Library's own form
Mayor Bill de Blasio, Emergency Executive Order No. 98 (Mar. 12, 2020) (Ex. MET-NYC-001)
This is the form The COVID Project uses in every list, table and report: issuer, instrument, date, exhibit. Use it in a footnote or a table once the full citation has appeared.
Bluebook-style citation of the instrument
Mayor Bill de Blasio, Emergency Executive Order No. 98, Declaration of Local State of Emergency (Mar. 12, 2020), https://www.nyc.gov/assets/home/downloads/pdf/executive-orders/2020/eeo-98.pdf, reproduced at The COVID Project, Ex. MET-NYC-001, https://covidproject.com/library/MET-NYC-001.
Author (the issuing authority), title (the instrument, then its subject where the record gives one), date, the source where the instrument was retrieved, and where it is reproduced. The archived copy, when the record holds one, follows in brackets, as rule 18.2.1(d) asks.
The document itself
https://covidproject.com/exhibit/MET-NYC-001
This address streams the exhibit file as The COVID Project retrieved it, 134 KB, with the ID and a short title in the file name. Cite it when the reader needs the document rather than the record.