Knowledge of applicable federal, state, and local laws, codes, and regulations related to refuse collection and disposal; procedures, methods, and equipment including computers and applicable software applications such as databases and other specialized applications related to area of assignment; two-way radio communication devices and other related equipment; basic arithmetic (i.e., addition, subtraction, multiplication, division, decimals, percentages, ratios, and fractions); English usage, spelling, grammar, and punctuation; proper methods of lifting and carrying heavy loads; procedures and policies pertaining to refuse and other source separated recyclable material collection and disposal; heavy duty vehicle and equipment operation; safety rules and regulations pertaining to refuse and other recyclable material collections and equipment operation; principles of effective customer service. Working Conditions: Positions in this class require the incumbent to: work outside in all types of climatic conditions including inclement and very hot weather; work around dust, dirt, odors, and refuse; work in loud or noisy areas; work around machinery and equipment with moving parts; work in enclosed tight spaces; work various shift, overtime, weekends, holidays and non-routine hours.