The rank of coal, within the bituminous class of Classification D 388, such that, on the moist, mineral-matter-free basis, the gross calorific value of the coal in British thermal units per pound is equal to or greater than 11,500 (26.75 MJ/kg) but less than 13,000 (30.24 MJ/kg) and the coal commonly agglomerates, or equal to or greater than 10,500 (24.42 MJ/kg) but less than 11,500 (26.75 MJ/kg) and the coal agglomerates.