The grade 1 symbol indicator sets grade 1 mode for the next symbol. Note: A grade 1 symbol indicator is not required before the letters a, i and o, because they do not have a contraction meaning when they stand alone.

The grade 1 word indicator sets grade 1 mode for the next symbolssequence or the remainder of the current symbols-sequence.

The effect of a grade 1 word indicator is terminated by a space or a grade 1 terminator.

Refer to: 5.5, for the Grade 1 Terminator.

The grade 1 passage indicator sets grade 1 mode for the next passage.

A grade 1 passage is terminated by the grade 1 terminator.

When punctuation, an indicator or a terminator occurs within a word, follow print and follow the basic contraction rules of Sections 10.1 to 10.11.

 For lisped words, follow the basic contraction rules of Sections 10.1 to 10.11.

 It is recognized that these guidelines relating to unknown pronunciation and syllabification may result in a particular word being contracted differently from one transcription to another.

To preserve the natural line-by-line arrangement of the text, e.g. in a computer program or a set of equations in mathematics, place the grade 1 passage indicator on a separate line above the grade 1 text and the grade 1 terminator on a separate line below the text. When this method is used, precede each indicator by the dot locator for

Refer to: Section 3.14, General Symbols and Indicators, for the dot locator for "use".

The grade 1 terminator usually follows immediately after the last affected symbols-sequence of a grade 1 passage.