# Implementation-specific limits

Some limits in the DFDL specification are implementation-defined.

The following limits apply to this implementation:

- A 1,000 digit limit applies during parsing or serializing of numbers with text representation.
- A maximum precision of 33 digits is supported during parsing or serializing of numbers. If this limit is exceeded, behavior is undefined.
- The maximum number of elements in an array is 2,147,483,647.
- Fractional second digits are supported to millisecond accuracy.