Adopting the lag structure used in the Tier 2/Gasoline Sulfur and Heavy-Duty Engine/Diesel Fuel RIAs and endorsed by the SAB (EPA-SAB-COUNCIL-ADV-00-001, 1999), we assume a five-year lag structure.
There is a five-year lag structure in the Tier 2 structure.
In the dohyo, a raised mound of hard clay some 4.6 m (15 ft) in diameter under a large suspended Shinto-roof-style canopy,toss salt across the dohyo to purify it of evil spirits, swagger around, and commence the all-important  psyching-out  of the opponent.