To determine if a celibate gay man can serve as an extraordinary minister of the Eucharist, it's important to consider the teachings of the Church on homosexuality, chastity, and the guidelines for extraordinary ministers of Holy Communion.

Here's a breakdown:

1. The Church's Teaching on Homosexuality: The Catholic Church teaches that homosexual acts are "intrinsically disordered" and contrary to natural law because they do not allow for the possibility of procreation and do not arise from a genuine affective and sexual complementarity 1. However, the Church also emphasizes that individuals with homosexual tendencies must be treated with respect, compassion, and sensitivity, and any form of unjust discrimination towards them should be avoided 2.

2. The Call to Chastity: The Church calls all people to chastity, each according to their state in life 3. This applies to all individuals, regardless of their sexual orientation. Homosexual persons are called to live chastity through self-mastery, the support of friendships, prayer, and sacramental grace 4. Celibacy is a form of chastity, where a person abstains from marriage and sexual relations 5 3.

3. Requirements for Extraordinary Ministers of Holy Communion:

   • Extraordinary ministers of Holy Communion are designated to assist when there are not enough ordinary ministers (bishops, priests, or deacons) present, or when the number of faithful is so large that the distribution of Communion would be excessively prolonged 6 7.
   • According to canon law, the ordinary minister of Holy Communion is a bishop, priest, or deacon 8. The extraordinary minister can be an acolyte or another member of the Christian faithful designated according to canon law 8.
   • Extraordinary ministers of Holy Communion should receive sufficient spiritual, theological, and practical preparation to fulfill their role with knowledge and reverence 9.
   • The diocesan bishop may depute a non-ordained member of the faithful to act as an extraordinary minister to distribute Holy Communion outside of liturgical celebrations, or the priest presiding at the liturgy may authorize someone in unforeseen circumstances 6.
   • The USCCB states that properly prepared lay Catholics can be appointed to serve as extraordinary ministers of Holy Communion, in accordance with canon law and the policies of the local diocese 10.

4. Considerations for a Celibate Gay Man: A celibate gay man who is living in accordance with the Church's teaching on chastity, and who meets the other requirements, may serve as an extraordinary minister of the Eucharist. The key factor is whether he is striving to live a chaste life, regardless of his sexual orientation.

5. Local Norms: It is important to note that the diocesan bishop has the authority to issue particular norms concerning extraordinary ministers of Holy Communion within his diocese 6. Therefore, the specific requirements and considerations may vary depending on the local diocese.

In summary, a celibate gay man can serve as an extraordinary minister of the Eucharist if he meets all the requirements, lives in accordance with the Church's teaching on chastity, and is approved by the local bishop.