53-foot boxes were built specifically for international trade and designed to withstand ocean voyages on its South China-to-Los Angeles service.[62] In 2013 however, APL stopped offering vessel space for 53-foot containers on its trans-Pacific ships.[66] Nevertheless, In 2015 both Crowley and TOTE Maritime each announced the construction of their respective second combined container and roll-on/roll-off ships for Puerto Rico trade, with the specific design to maximize cubic cargo capacity by carrying 53-foot, 102-inch (2,591 mm)-wide containers.[67] [68] Within Canada, Oceanex offers 53-foot-container ocean service to and from the island of Newfoundland.[69] Fifty-three-foot containers are also being used on some Asia Pacific international shipping routes.[57] JB Hunt container.jpeg 60-foot containers[edit] In May 2017, Canadian Tire and Canadian Pacific Railway announced deployment of the first 60-foot intermodal containers in North America. The containers allow Canadian Tire to increase the volume of goods shipped per container by 13%.[70] Small containers[edit] The United States military continues to use small containers, strongly reminiscent of their Transporter and Conex boxes of the 1950s and 1960s. These either comply with ISO standard dimensions, or are a direct derivative thereof. Current terminology of the United States armed forces calls these small containers Bicon, Tricon and Quadcon, which correspond with ISO 668 standard sizes 1D, 1E and 1F respectively. This comes down to containers of 8 ft (2.44 m) height, and with a footprint size either one half (Bicon), one third (Tricon) or one quarter (Quadcon) the size of a standard 20-foot, one TEU container.[71][72][73] At a nominal length of 10 feet (3.0 m), two Bicons coupled together lengthwise match one 20-foot ISO container, but their height is 6 inches (15 cm) shy of the more commonly available 10-foot ISO containers of so-called standard height, which are 8 ft 6 in (2.59 m) tall. Tricons and