www.scottishrugby.org/scottish-rugby-values/equality/transgender-policy
www.scottishrugby.org/sites/default/files/editor/images/sr18_transgender_policy.pdf
From the pdf;
- Eligibility Conditions for Transgender Players
Eligibility Conditions for Transgender Males
2.1 To be eligible to participate in male competition a Transgender Male player must provide a written and signed declaration, in a form satisfactory to the CMO, that his Gender Identity is male.
2.2 On receipt of a satisfactory signed declaration the CMO will issue written certification of that player’s ability to compete in male competition.
2.3 It shall be an offence subject to Misconduct proceedings for a Transgender Male player to participate in male competition prior to receiving certification from the CMO.
Eligibility Conditions for Transgender Females
2.4 To be eligible to participate in female competition a Transgender Female player must:
2.4.1
Provide a written and signed declaration, in a form satisfactory to the CMO, that their Gender Identity is female;
2.4.2
Demonstrate to the satisfaction of the Expert Panel (on the balance of probabilities and in accordance with the criteria set out in Section 4 of the World Rugby Transgender Policy), that the testosterone in their serum has been less than 5 nmol/L continuously for a period of at least 12 months; and
2.4.3
Keep their serum testosterone concentration below 5 nmol/L for so long as they continue to compete in the female category of competition.
2.5 On the receipt of the signed declaration, and subject to the recommendation of the Expert Panel, the CMO will issue written certification of that player’s ability to compete in female competition.
2.6 It shall be an offence subject to Misconduct proceedings for a Transgender Female player to participate in female competition prior to receiving certification from the CMO.
U18 Players
2.7 In addition to their written and signed Gender Identity Declaration, Transgender Players under the age of 16 must provide evidence of the consent of their parent or guardian.
2.8 For the avoidence of doubt, where the CMO has certified a player to be able to play in either male or female competitions the age banding criteria applicable to that gender will apply.
Scottish Rugby’s Transgender Policy
9
Scottish Rugby Transgender Policy
| August 2018
Provisions applicable to all Transgender Players
2.9 Once a Transgender player has satisfied the relevant requirements and received certification to participate in the category of competition consistent with their Gender Identity, they may not then switch back to participating in the other gender category unless and until:
2.9.1
At least four years have elapsed since they were first certified to compete as a Transgender player; and
2.9.2
They satisfy all of the conditions for eligibility to compete in the other gender category
2.10 For the avoidance of doubt:
2.10.1
No player will be required to undergo medical assessment and/or treatment. It is the player’s responsibility, in consultation with their medical team, to decide on the advisability of any such assessment or treatment.
2.10.2
The following are not required for a Transgender player to compete in the category of competition consistent with their Gender Identity:
(a) legal recognition of the player’s Gender Identity as their sex; or
(b) surgical anatomical changes.

2.10.3 The eligibility conditions for Transgender players operate without prejudice to all other applicable rules and requirements in respect of their participation (including inter alia the relevant anti-doping rules and any requirement to obtain a Therapeutic Use Exemption for the use of a substance on the WADA Prohibited List).
2.11 The decision of the CMO and/or Expert Panel shall be final and binding on all parties.