For a word shown in syllables, follow the basic contraction rules of Sections 10.1 to 10.11. In particular, do not use an alphabetic wordsign for a syllable of a word shown in syllables.

Except as provided for in Rule 10.12.1, use contractions in abbreviations and acronyms, following the provisions of Section 5.7.1 and 5.7.2, Grade 1 Mode, as well as those of Section 10.1 to 10.11. 

Use contractions in computer material, such as email addresses, web sites, URLs, and filenames when it is embedded in regular text. Use uncontracted braille for computer material, such as computer program code which is displayed on separate lines, as well as any nearby excerpts from the program.
Refer to: Section 11.10.2, Technical Material.

For words in dialect, follow the contraction rules, 10.1 to 10.11.

For fragments of words, follow print and follow the contraction rules, 10.1 to 10.11.

Several contraction rules are based on the pronunciation and/or syllabification of the word. The Preference rule states that a contraction is not to be used when it would "hinder the recognition of the word". Sections 10.10.8 and 10.10.9 (the Preference rule) refer to the pronunciation of a word.
These rules represent best practices to be applied when the transcriber or proofreader is familiar with the word, when the required information about the word can be found in the text itself or when it is readily available in reference material at hand, such as a dictionary or braille word list.

When the word is unfamiliar and when the pronunciation or syllabification is unknown and difficult to ascertain, then it is permissible for contraction use to be based on the best judgment of the transcriber and/or proofreader. When translation software is being used, its contraction usage may be followed.

The guidelines relating to unknown pronunciation or syllabification apply in particular to proper names, abbreviations, acronyms, contrived words (as in science fiction) and anglicised foreign words.

In all cases, consistency within a transcription is required.

Note: It is preferable that transcribers do not divide words at the end of a braille line. Be aware that the braille authorities of some countries have specific guidelines on word division and such guidelines if available should be followed. However, when words do need to be divided at the end of a line, observe the following contraction rules.
Note: The examples in this section first give the appearance of the word in print (that is, undivided) followed by the appearance of the word in braille (that is, divided between braille lines). The two spaces following the hyphen represent the space at the end of the braille line.