Informational use only — not legal advice. This page reflects CenterWorth's review of Maryland State Department of Education (MSDE), Office of Child Care regulations as of 2026-08-06. Regulations change. Always confirm current requirements directly with Maryland State Department of Education (MSDE), Office of Child Care before making staffing, licensing, or business decisions.
State-mandated minimum staffing ratios for licensed childcare centers in Maryland, organized by age group with maximum group sizes and official regulatory citations.
State-specific notes:
| Age Group | Min. Staff Ratio | Max Group Size |
|---|---|---|
| Infants — 6 weeks to under 18 months | 1:3 A group of 1 or 2 infants may be supervised by 1 staff with a maximum group of 9; a group of 3 or more infants requires a 1:3 ratio with a maximum group of 6. | 6 |
| Toddlers — 18 months to under 2 years | 1:3 | 9 |
| Two-year-olds (24 to under 36 months) | 1:6 | 12 |
| Three- and four-year-olds | 1:10 Centers operating an approved educational program for ages 3 and 4 may use a 1:12 ratio with a group maximum of 24. | 20 |
| Age 5 and older | 1:15 Centers operating an approved educational program for age 5 and older may use a 1:15 ratio with a group maximum of 30 (same ratio, different program track). | 30 |
"Min. Staff Ratio" means 1 staff member per N children. Both the ratio and group size limits must be satisfied simultaneously where both apply.
Indoor space
35 sq ft
per child (minimum)
Outdoor play space
75 sq ft
per child (minimum)
Space requirements apply to licensed childcare center classrooms. Verify current requirements and any exceptions with Maryland State Department of Education (MSDE), Office of Child Care.
In addition to the standard age-group ratios, Maryland regulations specify modified or additional staffing requirements for specific situations. These apply only under the conditions described.
A center operating an approved educational program may use: 1:6 (max 12) for age two, 1:12 (max 24) for ages three and four, and 1:15 (max 30) for age five and older.
The educational program track requires formal approval from MSDE. Centers not holding an approved educational program designation must use the standard ratios. Verify current approval status with the Office of Child Care before applying any alternative ratio.
Citation: COMAR 13A.16.08.03
Conditional rules apply only in the specific circumstances described. Verify applicability to your facility type and program with Maryland State Department of Education (MSDE), Office of Child Care.
Maryland's staffing ratios determine the minimum number of staff members you must have on the floor at any time — which directly sets your labor cost floor. Since payroll typically represents 50–65% of a childcare center's total operating expenses, the ratio requirement for your primary age group is one of the most important numbers in your business model.
For example, if you operate an infant room in Maryland at 1:3and enroll 12 infants, you need at least 4 staff members on the floor at all times. If you expand to 16 infants, your required staff count increases accordingly — and your payroll jumps before you see any additional tuition revenue.
CenterWorth's staffing cost calculator lets you model your Maryland center's exact staffing requirement by age group, enrollment level, and hours of operation — so you can see payroll as a percentage of revenue before you commit to a lease or license.
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Maryland childcare staffing ratio requirements are set through the state regulatory process and do not change frequently. When the legislature or licensing agency amends the rules, there is typically a public comment period before new ratios take effect. Always verify current requirements directly with Maryland State Department of Education (MSDE), Office of Child Care before making staffing, licensing, or business decisions. CenterWorth's data reflects the rules as of the date shown above.
Ratios directly determine how many staff members you must have on the floor at any time, which drives your payroll cost — typically 50–65% of total revenue. A stricter ratio (e.g., 1:3 for infants vs. 1:4) increases your minimum staffing requirement by 33%, which can make the difference between a profitable infant room and a money-losing one. Use CenterWorth's staffing cost calculator to model your exact state-mandated staffing costs.
No. The ratios on this page apply to licensed childcare centers in Maryland. Family childcare homes and group family homes are regulated separately and typically have different (often more permissive) ratio requirements. Contact Maryland State Department of Education (MSDE), Office of Child Care for the applicable family home standards.
The ratio tells you the maximum number of children one staff member may supervise. The maximum group size (where shown) is a separate ceiling on the total number of children allowed in one classroom regardless of how many staff are present. Both limits must be met simultaneously. If your state lists a 1:10 ratio and a group size of 20, you need at least 2 staff for a full group — and you cannot have more than 20 children in that room even with 3 staff.
No. These are Maryland state licensing minimums — the legal floor. NAEYC accreditation standards are voluntary and are typically stricter than state minimums. NAEYC recommends ratios of 1:3 for infants and 1:6–1:8 for preschoolers, which exceed what many states require. Centers pursuing NAEYC accreditation must meet NAEYC's requirements in addition to Maryland's licensing minimums.
CenterWorth's current public status identifies whether a full review is current, pending source re-review, partial, or pending. A prior full-verification date is shown only when supported by canonical verification evidence. Data may not reflect subsequent regulatory changes — always confirm with Maryland State Department of Education (MSDE), Office of Child Care before acting on it.
Enter your center's capacity, enrollment, and tuition to get a complete financial model — including payroll, break-even enrollment, and operating margin — for your Maryland center.
About this data
This page reflects CenterWorth's review of official Maryland State Department of Education (MSDE), Office of Child Care regulations. CenterWorth compiles data exclusively from primary government and regulatory sources — never from secondary aggregators or advocacy estimates. Data is captured as of the date shown and may not reflect subsequent regulatory amendments. This page is for informational and planning purposes only and does not constitute legal advice.