| http://www.w3.org/ns/prov#value | - In Section 2E.17 (Section 2E.16 in the 2003 MUTCD) Abbreviations, the FHWA adopts new GUIDANCE as proposed in the NPA, which states that periods, apostrophes, question marks, ampersands, or other punctuation or characters that are not letter or numerals should not be used on signs.
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