The sanction reduction based on No Significant Fault or Negligence has rarely been applied in Contaminated Product cases unless the Athlete has exercised a high level of caution before taking the Contaminated Produc t. In assessing whether the Athlete can establish the source of the Prohibited Substance, it would, for example, be significant for purposes of establishing whether the Athlete actually Used the Contaminated Product, whether the Athlete had declared the pr oduct which was subsequently determined to be contaminated on the Doping Control form.