The american-wood-preservers-association is referenced in the 1935-Miami-Dade-Building-Code_p205_224 regarding the specifications for creosoted wood piles. The code mandates that creosoted piles of Douglas fir or Southern pine must be treated with Grade 1 creosote under pressure, complying with Specification No. 41-a or No. 39-a of this association (p. 220). This ensures a final retention of not less than sixteen pounds per cubic foot in Douglas fir and twenty pounds per cubic foot in Southern pine (p. 220). These standards are critical for the durability of pile-foundation-engineering in damp or submerged conditions.