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Chapter 8
An en dash is used—
8.72.
In a combination of (1) figures, (2) capital letters, or (3) figures and capital letters. An en dash, not a hyphen, is used, even when such terms are adjectival modifiers.
figures:
- 5–20 (bonds)
- 85–1—85–20 (Public laws. Note em dash between two elements with en dashes)
- 1–703–765–6593 (telephone number)
- 230–20–8030 (Social Security number)
- $15–$25 (range)
capital letters:
- WTOP–AM–FM–TV (radio and television stations)
- CBS–TV
- AFL–CIO (union merger)
- C–SPAN (satellite television)
figures and capitals:
- 6–A (exhibit identification)
- DC–14 (airplane)
- 1–95 (interstate roadway)
- 4–H (Club)
- LK–66–A(2)–74 (serial number)
but Rule 13e-4
- section 12(a)–(b) (en dash used for the word "to")
- ACF–Brill Motors Co. (hyphen with capital letters and a word)
- loran–C (hyphen with lowercase word and capital letter)
- MiG–25 (hyphen with mixed letters with figure)
- ALL–AMERICAN ESSAY CONTEST (hyphen in capitalized heading)
- Four Corners Monument, AZ–NM–UT–CO (hyphen with two-letter state abbreviations)
8.73.
In the absence of the word to when denoting a span of time.
- 2005–2008
- January–June
- Monday–Friday
An en dash is not used—
8.74.
For to when the word from precedes the first of two related figures or expressions.
- From June 1 to July 30, 2005; not from June 1–July 30, 2005
8.75.
For and when the word between precedes the first of two related figures or expressions.
Between 2000 and 2008; not between 2000–08