bottleneck-slow down or impede by creating an obstruction; His laziness has bottlenecked our efforts to reform the system. blockade, obstruct, stymie, stymy, embarrass, hinder, block-hinder or prevent the progress or accomplishment of; His brother blocked him at every turn.
Becoming a Lifeguard. Becoming a lifeguard does require an initial investment of time and money. Certification courses cost anywhere from $150 to $500, and take upwards of 30 hours to complete.
Once a minor reaches 18 years of age, the federal child labor provisions no longer apply to their employment. 16 and 17 years of age. Sixteen and 17-year-olds employed as lifeguards may perform any nonhazardous job, for unlimited hours.