Technical Booklet D Structure·Page 11·1.1
General rules for Parts 4B and 4C
When using Parts 4B and 4C of Section 4, the general rules in paragraph 4A.1 must be complied with. Sections 3 and 4 may be used independently of each other.
The general rules in paragraph 4A.1 should be complied with when using Parts 4B and 4C of Section 4. Sections 3 and 4 may be used independently of each other.
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