features\ of\ official\ style

- special system of cliches, terms and set expressions; conventionality of expression;

- each of subdivisions of this style has its own peculiar terms, phrases and expressions;

- the encoded character of language; symbols: special terminological nomenclature, abbreviations, conventional symbols and contractions;

- use of words in their logical dictionary meaning. There is no room for words with contextual meaning or for any kind of simultaneous realisation of two meanings;

- word with emotive meaning are also not to be found, except those which are used in business letters as conventional phrases of greeting or close (as Dear Sir);

- absence of any emotiveness: (commercial correspondence) emotional words and phrases;

- compositional patterns, compositional design; infinitive object clauses;

- a general syntactical mode of combining several pronouncement into one sentence, the whole document in one sentence [according to] its formal syntactical structure.

Source: I.R.G.