Rule 203 - Determining Foreign Law(a)Raising a Foreign Law Issue. A party who intends to raise an issue about a foreign country's law must: (1) give reasonable notice by a pleading or other writing; and(2) at least 30 days before trial, supply all parties a copy of any written materials or sources the party intends to use to prove the foreign law.(b)Translations. If the materials or sources were originally written in a language other than English, the party intending to rely on them must, at least 30 days before trial, supply all parties both a copy of the foreign language text and an English translation.(c)Materials the Court May Consider; Notice. In determining foreign law, the court may consider any material or source, whether or not admissible. If the court considers any material or source not submitted by a party, it must give all parties notice and a reasonable opportunity to comment and submit additional materials.(d)Determination and Review. The court-not the jury-must determine foreign law. The court's determination must be treated as a ruling on a question of law.(e)Suits Brought Under the Family Code Involving a Marriage Relationship or Parent-Child Relationship. Subsections (a) and (b) of this rule do not apply to an action to which Rule 308b, Texas Rules of Civil Procedure, applies.Amended December 28, 2017, effective 1/1/2018.