↑Ley de Pesas and Medidas del Estado Libre Asociado de Purto Rico: Número de Ley 145 (Law of Weights and Measures of the Commonwealth of Puerto Rico: Law No. 145)(in Puerto Rican Spanish). DACO. Puerto Rico Department of Consumer Affairs (27 June 1968). "Section 3: The system of weights and measures commonly used in the United States of America and the decimal metric system, shall be recognized and used in Puerto Rico for all commercial, industrial and agricultural purposes, to the extent of land and in the documents related thereto. , the unit called "rope" may be used, which shall be understood as an equivalence of 3,930,395625 square meters."
↑11 GCA Finance & Taxation Ch. 2 Weights & Measures. Judiciary of Guam. "The customary system of weights and measures used in the United
States and the metric system of weights and measures are jointly
recognized and either one or both of these systems shall be used for all
commercial and governmental purposes in the Territory."
↑Buchholz, Katharina (6 June 2019). Only Three Countries in the World (Officially) Still Use the Imperial System. Statista. "The UK is the country stuck in the middle of both systems, being the birthplace of the imperial system itself. Here, metric is partially adopted but miles persist, and people routinely refer to pints, miles per gallon, pounds and even stone in their everyday lives."
Datum
6. Januar 2016 (Original-Hochladedatum)
17. September 2018
Quelle
Eigenes Werk
Diese Weltkarte enthält Elemente, die von folgender Datei entnommen oder adaptiert wurden:
Metric system uptake for statutory purposes (SVG files)
English: By degree. Data from the English Wikipedia Metrication article, the Law of Weights and Measures of the Commonwealth of Puerto Rico, the Weights & Measures law of Guam and a June 2019 article by Katharina Buchholz on the Statista statistics portal.
English: By degree. Data from Vera's PhD thesis on metrication in the United States and Mexico (2011).
English: By date. Data source not recorded.
English: By date. Data from NIST (1975) and Vera's PhD thesis on metrication in the United States and Mexico (2011).
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