Thank you for your query at DoctorSpring.com.
Right bundle branch is seen a significant number of normal people. If seen in normal patients it doesn't have any significant implications. It may be seen in certain cardiac conditions as well. But since your husband doesn't seem to have any significant history it is unlikely to be the case.
A good clinician wouldn't investigate you further if your clinical examination is normal.
In case you are denied licence you may get a 2D echo done to show that there is no structural cardiac abnormality.
All the best.
Dr Vivek Mahajan