5 CSR 25-500.112
Staff/Child Ratios and Group Size
PURPOSE: This rule provides the number of staff required for
specific ages and numbers of children in care.
AND SECONDARY EDUCATION
(1) Staff/child ratios shall be maintained at all times.
(A) The staff/child ratio and group size shall be followed as
outlined in the chart below unless it meets an exception in
subsections (1)(B)-(G) below.
Ages of Children
in Group
Description for
the Purpose of
this Rule
Minimum
Staff/Child
Ratio
Maximum
Group
Size
Infants, toddlers,
and 2-year-olds
Birth to 36
months
1:4
8
2-year-olds
Groups
composed solely
of children 24 to
36 months
1:8
16
3 through 4-yearolds
Groups
composed solely
of children 3 to 4
years old
1:10
20
5-year-olds and up
Groups
composed solely
of children 5
years or older
1:16
32
Mixed ages (Type
1) 2-year-olds
and older, with a
maximum of four
(4) 2-year-olds
A mixed group
of children
consisting of
no more than 4
children ages 24
to 36 months,
and at least one
child older than
36 months
1:10
20
Mixed ages (Type
2) 2-year-olds and
older, with more
than four (4)
2-year-olds
A mixed group
of children
consisting of
more than 4
children ages 24
to 36 months,
and at least one
child older than
36 months
1:8
16
(B) For group child care homes licensed for a maximum
of four (4) infants/toddlers or for child care centers licensed
for a maximum of twenty (20) children, including no more
than four (4) infants/toddlers, multiple groups may occupy
the same physical space.
(C) During naptime, groups composed of children two (2)
years old and older shall not be required to maintain staff/
child ratio within the napping area, but shall not exceed
group size limitations. The required staff/child ratio shall be
maintained on the premises during naptime.
(D) Groups composed of children two (2) years old and older
shall not be required to maintain group sizes during –
1. Outdoor play;
2. Indoor gross motor activities in a gymnasium or
multi-purpose room;
3. Meals;
4. Field trips; and
5. Special events including but not limited to guest speakers, assemblies, and celebrations.
(E) Group size requirements shall not apply when children
are transported to or from the facility.
(F) For programs licensed exclusively for school-age children, multiple groups may occupy the same physical space.
(G) During outdoor play, staff/child ratios may be one and
one-half (1 1/2) times the indoor staff/child ratios if children
two (2) years of age or younger are not present in the outdoor
play space. The required indoor staff/child ratios shall be
maintained on the premises at all times.
(2) If a center has an attendance of more than fifty (50)
children, the center director or individual in charge shall not
be included in staff/child ratios except during naptime or on
an emergency substitute basis.
(3) If a center has an attendance of more than thirty (30)
children at lunch or dinner time, staff shall be provided for
meal preparation, serving, and clean-up. The staff shall not be
included in staff/child ratios during this time.
(4) Individuals employed for clerical, housekeeping, cleaning,
and maintenance shall not be included in staff/child ratios
while performing those duties.
AUTHORITY: section 161.092, RSMo 2016, and section 210.221,
RSMo Supp. 2023.* This rule previously filed as 13 CSR 40-62.100, 13
CSR 40-62.112, and 19 CSR 40-62.112. Original rule filed March 29,
1991, effective Oct. 31, 1991. Changed to 19 CSR 40-62.112, effective
Dec. 9, 1993. Changed to 19 CSR 30-62.112 July 30, 1998. Moved to
5 CSR 25-500.112, effective Aug. 30, 2021. Amended: Filed June 7,
2023, effective Jan. 30, 2024.
*Original authority: 161.092, RSMo 1963, amended 1973, 2002, 2003, 2013, 2014, and
210.221.1(3), RSMo 1949, amended 1955, 1987, 1993, 1995, 1999, 2015, 2019, 2020,
2022.