Texas Family Code - FAM § 301.103. Deposition Availability

(a) A party seeking affirmative relief shall make an expert retained by, employed by, or otherwise under the control of the party available for a deposition in accordance with this section.

(b) If a party seeking affirmative relief does not provide a report of the party's expert's factual observations, tests, supporting data, calculations, photographs, and opinions when the party designates the expert, the party shall make the expert available for a deposition reasonably promptly after the designation. If the deposition cannot be reasonably concluded more than 15 days before the deadline for designating other experts due to the actions of the party who designated the expert, the court shall extend the deadline for other experts testifying on the same subject.

(c) If a party seeking affirmative relief provides a report of the party's expert's factual observations, tests, supporting data, calculations, photographs, and opinions when the party designates the expert, the party is not required to make the expert available for a deposition until reasonably promptly after all other experts have been designated.

(d) A party not seeking affirmative relief shall make an expert retained by, employed by, or otherwise under the control of the party available for a deposition reasonably promptly after the party designates the expert and the experts testifying on the same subject for the party seeking affirmative relief have been deposed.