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Earlier editions: 20222019

Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICAL VACUUM SYSTEMS

1313.1 Vacuum Source Exhausts. The medical-surgical

California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-09-10 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

vacuum pumps shall exhaust in a manner and location that minimizes the hazards of noise and contamination to the facility and its environment. [NFPA 99:5.1.3.7.7.1]

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Contents — California Plumbing Code (Title 24, Part 5)
California Plumbing Code (Title 24, Part 5)
  1. Chapter 1 — GENERAL CODE PROVISIONS
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REGULATIONS
  4. Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
  5. Chapter 5 — WATER HEATERS
  6. Chapter 6 — WATER SUPPLY AND DISTRIBUTION
  7. Chapter 7 — SANITARY DRAINAGE
  8. Chapter 8 — INDIRECT WASTES
  9. Chapter 9 — VENTS
  10. Chapter 10 — TRAPS AND INTERCEPTORS
  11. Chapter 11 — STORM DRAINAGE
  12. Chapter 12 — FUEL GAS PIPING
  13. Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICA…
    Overview
    1. 1301.1 Applicability. This chapter applies to the special fixt…
    2. 1301.2 Where Not Applicable. This chapter does not apply
    3. 1301.3 Conflict of Requirements. The requirements of
    4. 1301.4 Where Required. Construction and equipment
    5. 1301.5 Existing Systems. Only the altered, renovated, or
    6. 1302.1 Risk Categories. All activities, as well as systems
    7. 1302.2 Patient Care Spaces. The health care facility’s
    8. 1302.3 Anesthesia. It shall be the responsibility of the
    9. 1302.4 Wet Procedure Locations. It shall be the responsibility…
    10. 1303.1 Drinking Fountain Control Valves. Drinking
    11. 1303.2 Psychiatric Patient Rooms. Piping and drain
    12. 1303.3 Locations for Ice Storage. Ice makers or ice storage co…
    13. 1303.4 Sterilizers and Bedpan Steamers. Sterilizers
    14. 1303.5 Aspirators. Provisions for aspirators or other watersup…
    15. 1303.6 Drains. Drains shall be installed on dryers, aftercoole…
    16. 1303.7 Clinical Sinks. Clinical sinks shall be installed in
    17. 1303.8 Water Supply for Hospitals. Hospitals shall be
    18. 1303.9 Work Performed in Occupied Healthcare
    19. 1304.1 General. The installation of medical gas and medical va…
    20. 1304.2 Certification of Systems. Certification of medical gas …
    21. 1304.3 Construction Documents. Before a medical gas
    22. 1304.4 Extent of Work. Construction documents submitted
    23. 1304.5 Record. A record of as-built plans and valve identifica…
    24. 1305.1 Required Operating Pressures. Medical gas and
    25. 1305.2 Minimum Flow Rates. Medical gas and vacuum
    26. 1305.3 Minimum Station Outlets and Inlets. Station
    27. 1306.1 Certification. Prior to a medical gas or vacuum system …
    28. 1306.2 Certification Tests. Certification tests, verified and
    29. 1306.3 Report Items. A report that includes the specific
    30. 1306.4 Components. Functioning of alarm components
    31. 1307.1 Terms. Where the terms medical gas or medical support g…
    32. 1307.2 Nature of Hazards of Gas and Vacuum Sys-
    33. 1307.3 Permitted Locations for Medical Gases. Central supply s…
    34. 1307.4 Materials. Materials used in central supply systems
    35. 1308.1 Where Required. Pressure-regulating equipment
    36. 1308.2 Pressure Relief Valves. All pressure relief valves
    37. 1308.3 Pressure-Relief Valve Requirements. Central
    38. 1309.1 Oxygen Requirements. Oxygen concentrator supply units f…
    39. 1309.2 Particulate Size. Output shall have less than or
    40. 1309.3 Suitability. Materials of construction on the air side
    41. 1309.4 Compatible Materials. Materials of construction
    42. 1309.5 Oxygen Concentrator Components. The components that mak…
    43. 1309.6 Supply Air Quality. The supply air to the concentrator(…
    44. 1309.7 Electrical Components. The oxygen concentrator
    45. 1309.8 Vent Valve. A vent valve shall be provided as follows:
    46. 1309.9 Valved Sample Port. A DN8 (NPS 1/4) valved
    47. 1309.10 Suitable Filter. At least one 0.1 micron filter suitab…
    48. 1309.11 Check Valve. A check valve shall be provided at
    49. 1309.12 Outlet Valve. An outlet valve shall be provided to
    50. 1309.13 Oxygen Concentration Monitor. The oxygen
    51. 1310.1 Quality of Medical Air. Medical air shall be
    52. 1310.2 Uses of Medical Air. Medical air sources shall be
    53. 1310.3 Medical Air Compressors. Medical air compressors shall …
    54. 1310.4 Medical Air Receivers. Receivers for medical air
    55. 1310.5 Valves. A medical air receiver(s) shall be provided
    56. 1311.1 Air Sources. Air sources for medical air compressors
    57. 1311.2 Medical Air Compressor Source. The medical
    58. 1311.3 Air Intakes. Compressor intake piping shall be permitte…
    59. 1311.4 Location. Medical air intakes shall be located as fol
    60. 1311.5 Separate Compressors. Air intakes for separate
    61. 1311.6 Screening. The end of the intake shall be turned
    62. 1312.1 General. The vacuum plant shall be installed in a
    63. 1312.2 Medical-Surgical Vacuum Sources. Medicalsurgical vacuum…
    64. 1312.3 Vacuum Receivers. Receivers for vacuum shall
    65. 1312.4 Vacuum Filtration. Central supply systems for vacuum ot…
    66. 1312.5 Piping Arrangement and Redundancies. Piping arrangement…
    67. 1312.6 Piping Serviceability. The medical-surgical vacuum rece…
    68. 1312.7 Shutoff Valve. Medical-surgical vacuum central
    69. 1313.1 Vacuum Source Exhausts. The medical-surgical
    70. 1313.2 Location. The exhaust shall be located as follows:
    71. 1313.3 Screening. The end of the exhaust shall be turned
    72. 1313.4 Dips and Loops. The exhaust shall be free of dips
    73. 1313.5 Multiple Pumps. Vacuum exhausts from multiple
    74. 1314.1 Gas and Vacuum Shutoff Valves. Shutoff valves
    75. 1314.2 Security. All valves, except valves in zone valve
    76. 1314.3 Labeled. All valves shall be labeled as to gas supplied…
    77. 1314.4 Accessibility. Zone valves shall be installed in
    78. 1314.5 Valve Types. New or replacement valves shall be
    79. 1314.6 Source Valves. A shutoff valve shall be placed at the
    80. 1314.7 Main Line Valve. A shutoff valve shall be provided
    81. 1314.8 Riser Valves. Each riser supplied from the main line
    82. 1314.9 Service Valves. Service valves shall be installed to
    83. 1314.10 Zone Valves. All station outlets/inlets shall be suppl…
    84. 1314.11 In-Line Shutoff Valves. Optional in-line valves
    85. 1314.12 Valves for Future Connections. Future con
    86. 1315.1 General. Each station outlet/inlet for medical gases
    87. 1315.2 Required Valves. Each station outlet shall consist
    88. 1315.3 Secondary Valve. The secondary valve (or assembly) shal…
    89. 1315.4 Identification. Each outlet/inlet shall be legibly iden…
    90. 1315.5 Threaded Outlets/Fittings. Threaded outlets/inlets
    91. 1315.6 Gas-Specific Station Outlet/Inlet. Each station
    92. 1315.7 Common Parts. The use of common parts in outlets/inlets…
    93. 1315.8 Marking of Components. Components of a vacuum station i…
    94. 1315.9 Components Not Specific to a Vacuum. Components of inle…
    95. 1315.10 Factory-Installed Copper Inlet Tubes. Factoryinstalled…
    96. 1315.11 Factory-Installed Copper Outlet Tubes. Factory-install…
    97. 1315.12 Protection from Damage. Station outlets/inlets
    98. 1315.13 Multiple Wall Outlets/Inlets. When multiple wall
    99. 1315.14 Nonstandard Operation Pressures. Station
    100. 1315.15 Post Installation. After installation of the piping,
    101. 1316.1 Isolation. A pressure-relief valve shall not be isolate…
    102. 1316.2 Pressure and Vacuum Indicator Locations.
    103. 1317.1 Category 1. All master, area, and local alarm systems u…
    104. 1318.1 General. The provisions of this section shall apply
    105. 1318.2 Cleaning. Tubes, valves, fittings, station outlets, and
    106. 1318.3 Delivery. Each length of tube shall be delivered
    107. 1318.4 Tubes for Medical Gas Systems. Tubes shall be
    108. 1318.5 Manufacturer Markings. ASTM B819, medical gas
    109. 1318.6 Documentation. The installer shall furnish documentatio…
    110. 1319.1 Tubes for Medical Vacuum Systems. Piping for
    111. 1320.1 General. This section sets forth the requirements for
    112. 1320.2 Changes in Direction. Positive pressure patient
    113. 1321.1 Brazed Joints and Fittings. Fittings shall be
    114. 1321.2 Tube Joints. Brazed tube joints shall be the socket
    115. 1321.3 Filler Metals. Filler metals shall bond with and be
    116. 1321.4 Copper-to-Copper Joints. Copper-to-copper
    117. 1321.5 Accessible. Joints to be brazed in place shall be
    118. 1321.6 Purging. Braze joints shall be continuously purged
    119. 1321.7 Tube Ends. Tube ends shall be cut square using a
    120. 1321.8 Cleaning Procedures. The interior surfaces of
    121. 1321.9 Brazing Dissimilar Metals. Flux shall only be
    122. 1321.10 Nitrogen Purge. When brazing, joints shall be
    123. 1321.11 Assembling and Heating Brazed Joints. Tube
    124. 1321.12 Inspection of Brazed Joints. After brazing, the
    125. 1322.1 Welded Joints Procedure. Welded joints for medical gas …
    126. 1322.2 Welding for Stainless Tube. Stainless tube shall
    127. 1322.3 Memory Metal Fittings. Memory metal fittings
    128. 1322.4 Axially Swaged Fittings. Axially swaged fittings
    129. 1322.5 Threaded Fittings. Threaded fittings shall meet the
    130. 1322.6 Other Types of Fittings. Listed or approved metallic ga…
    131. 1322.7 Prohibited Joints. The following joints shall be
    132. 1323.1 Required Pipe Sizing. Piping systems shall be
    133. 1323.2 Pipe Protection. Piping shall be protected against
    134. 1323.3 Location of Piping. Piping risers shall be permitted to…
    135. 1323.4 Pipe Support. Piping shall be supported from the
    136. 1323.5 Frost Protection. Buried piping outside of buildings sh…
    137. 1323.6 Connectors. Hose and flexible connectors, both
    138. 1323.7 Prohibited System Interconnections. Two or
    139. 1323.8 Manufacturer’s Instructions. The installation of
    140. 1323.9 Changes in System Use. Where a positive-pressure medica…
    141. 1323.10 Qualifications of Installers. The installation of
    142. 1323.11 Qualification of Brazing Procedures and
    143. 1323.12 Breaching or Penetrating Medical Gas Pip-
    144. 1323.13 Labeling, Identification and Operating Pres-
    145. 1323.14 Identification of Shutoff Valves. Shutoff valves
    146. 1323.15 Identification. Station outlets and inlets shall be
    147. 1324.1 Where Required. Inspection and testing shall be
    148. 1324.2 Breached Systems. All systems that are breached
    149. 1324.3 Test Gas. The test gas shall be oil-free, dry nitrogen
    150. 1324.4 Initial Piping Blowdown. Piping in medical gas and
    151. 1324.5 Initial Pressure Tests – Medical Gas and Vac-
    152. 1325.1 General. Category 2 piped gas or piped vacuum system re…
    153. 1325.2 Nature of Hazards of Gas and Vacuum Sys-
    154. 1325.3 Central Supply Systems. Category 2 systems
    155. 1325.4 Category 2 Medical Air Supply Systems. Category 2 syste…
    156. 1325.5 Oxygen Concentrators. Oxygen supply systems
    157. 1325.6 Category 2 Medical-Surgical Vacuum. Category 2 systems …
    158. 1325.7 Valves. Category 2 systems shall comply with Section 13…
    159. 1325.8 Station Outlets and Inlets. Category 2 systems
    160. 1325.9 Pressure and Vacuum Indicators. Category 2
    161. 1325.10 Warning Systems. Warning systems associated
    162. 1325.11 Category 2 Distribution. Category 2 systems
    163. 1325.12 Labeling and Identification. Category 2 systems shall …
    164. 1325.13 Performance Criteria and Testing — Gas,
    165. 1326.6 Station Outlets and Inlets. Category 3 systems
    166. 1326.7 Pressure and Vacuum Indicators. Category 3
    167. 1326.8 Warning Systems. Warning systems associated
    168. 1326.9 Distribution. Category 3 systems shall comply with
    169. 1326.10 Labeling and Identification. Category 3 systems
    170. 1327.1 General. Dental gas and vacuum systems shall comply wit…
    171. 1327.2 Emergency Shutoff Valves (Oxygen and
    172. 1327.3 Warning Systems (Oxygen and Nitrous
    173. 1326.1 General. Category 3 piped gas and vacuum systems
    174. 1326.2 Nature of Hazards of Gas and Vacuum Sys-
    175. 1326.3 Medical Air Supply Systems. Category 3 central
    176. 1326.4 Medical–Surgical Vacuum Systems. Category
    177. 1326.5 Valves. Category 3 systems shall comply with Section 13…
    178. 1327.4 Initial Pressure Test. Each section of the piping in
    179. 1327.5 Maximum Copper Tube Support Spacing. The
    180. 1327.6 Maximum Plastic Pipe Support Spacing. The
    181. 1327.7 Standing Pressure Tests for Oxygen and
    182. 1327.8 Verifier Operational Pressure Test. Operational
  14. Chapter 14 — FIRESTOP PROTECTION
  15. Chapter 15 — ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS
  16. Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
  17. Chapter 17 — REFERENCED STANDARDS
  18. Appendix A — RECOMMENDED RULES FOR SIZING THE WATER SUPPLY SYS…
  19. Appendix B — EXPLANATORY NOTES ON COMBINATION WASTE AND VENT S…
  20. Appendix C — ALTERNATE PLUMBING SYSTEMS
  21. Appendix D — SIZING STORM WATER DRAINAGE SYSTEMS
  22. Appendix E — MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL V…
  23. Appendix F — FIREFIGHTER BREATHING AIR REPLENISHMENT SYSTEMS
  24. Appendix G — SIZING OF VENTING SYSTEMS
  25. Appendix H — PRIVATE SEWAGE DISPOSAL SYSTEMS
  26. Appendix I — INSTALLATION STANDARDS
  27. Appendix J — COMBINATION OF INDOOR AND OUTDOOR COMBUSTION AND …
  28. Appendix K — POTABLE RAINWATER CATCHMENT SYSTEMS
  29. Appendix L — SUSTAINABLE PRACTICES
  30. Appendix M — PEAK WATER DEMAND CALCULATOR
  31. Appendix N — IMPACT OF WATER TEMPERATURE ON THE POTENTIAL FOR …
  32. Appendix O — NON-SEWERED SANITATION SYSTEMS
  33. Appendix P — PROFESSIONAL QUALIFICATIONS
  34. Appendix Q — INDOOR HORTICULTURAL FACILITIES
  35. Appendix R — TINY HOUSES
  36. Appendix S — ONSITE STORMWATER TREATMENT SYSTEMS

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