Other
9 
Table H-5: Standards for Showerheads 
Appliance Maximum Flow Rate
Manufactured on or after 
January 1, 1994 and prior
to July 1, 2016
Manufactured on or after 
July 1, 2016 and prior to 
July 1, 2018
Manufactured
 on 
or
  after July 1, 
2018
Showerheads
2.5 gpm at 80 psi 
2.0 gpm at 80 psi
1,2,3
  1.8 gpm at 80 psi
1,2,3
1
The maximum flow rate shall be the highest value obtained through testing at a flowing pressure of 80 
±1 
psi and shall not exceed the maximum flow rate in Table H
5. 
2
Minimum flow rate. 
The minimum flow rate, determined through testing at a flowing pressure of 20 ± 1 
psi, shall not be less than 60 percent of the maximum flow rate in Table H
5. The minimum flow rate 
determined through testing at flowing pressures of 45 and 80 ± 1 psi shall not be less than 75 percent 
of the 
maximum flow rate in Table H
5. 
3
Showerheads with multiple nozzles. The total flow rate of showerheads with multiple nozzles must be 
less 
than or equal to the maximum flow rate in Table H
5 when any or all nozzles are in use at the same  time. 
 
 (6) 
Other Plumbing Fittings
. See Section 1605.1(h) for water efficiency standards for plumbing fittings that 
are federally
regulated consumer products. 
 
(i) Plumbing Fixtures. 
(1) The water consumption of water closets, and urinals, other than those designed and marketed 
exclusively for use at prisons or mental health care facilities shall be no greater
than the values shown in 
Table 
I-2. 
Table I-2 Standards for Plumbing Fixtures 
Appliance
Maximum Gallons per Flush or Dual-flush effective flush
 v
olume
Sold or offered for sale on or after 
January 1, 2014
1
Sold or offered for sale on or after 
January 1, 2016
1
All water closets  1.28  1.28 
Trough-type urinals 
trough length (inches) 
16 
trough length (inches) 
16 
Wall mounted urinals  0.5  0.125 
Other urinals  0.5  0.5 
1
For the items identified in Table I-2, non-compliant products may not be sold or offered for sale on or after the 
designated date, regardless of manufacture date










