Section 390.1030  Rules of Construction

a)         In the IMCSR unless the context requires otherwise:

1)         Words imparting the singular include the plural;

2)         Words imparting the plural include the singular; and

3)         Words imparting the present tense include the future tense. (49 CFR 390.7)

b)         In the IMCSR:

1)         "Officer" includes any person authorized by law to perform the duties of the office;

2)         "Writing" includes printing and typewriting;

3)         "Shall" is used in an imperative sense;

4)         "Must" is used in an imperative sense;

5)         "Should" is used in a recommendatory sense;

6)         "May" is used in a permissive sense; and

7)         "Includes" is used as a word of inclusion, not limitation. (49 CFR 390.7)

(Source:  Amended at 38 Ill. Reg. 547, effective December 19, 2013)