# One-Call Systems — Pipeline Safety Interpretation - **operation:** document - **citation:** PI-90-033 - **title:** One-Call Systems — Pipeline Safety Interpretation - **source type:** guidance - **agency:** Pipeline and Hazardous Materials Safety Administration - **status:** guidance - **official:** true - **published on:** 1990-11-01 - **effective on:** Not available - **summary:** PI-90-033 response to One-Call Systems concerning 199.3. - **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-90-033.json - **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-90-033.md - **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-90-033 - **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1990/PI90033.pdf **body:** <<>> November 1, 1990 Ms. Kim Lilly One-Call Systems International Committee Suite 440 4747 N. Seventh Street Phoenix, AZ 85014 Dear Ms. Lilly: This responds to your letter of July 25, 1990, in which you asked if RSPA's anti-drug rules in 49 CFR Part 199 apply to employees of One-Call Centers. One-Call services which notify membership of planned excavation are not subject to 49 CFR Part 199 unless the service is performed for the pipeline operator under contract; and pursuant to Part 192, is also receiving, identifying, or classifying notices of events or making emergency decisions which need immediate response by the operator or notice to fire, police, or other officials. Sincerely, George W. Tenley, Jr. Associate Administrator for Pipeline Safety dal/199.3 90-11-01.1 - **truncated:** false - **body characters:** 788